Almost any VR application might be launched in different modes (some of them, mostily available on STEAM allow you to chose a mode you want to run it. If you have flagship GPU and high-spec configuration, it is not that important in most cases, but for middle and low configurations devices you might face performance problems while running apps in non-native mode. For Oculus devices it is always recommended to launch them in Oculus SDK mode. Some apps (like STEAM version of Beat Saber) need to be configured with additional launch arguments to get working in Oculus SDK mode. Even if app doesn't have Native Oculus SDK mode, you can use OpenComposite to improve performance instead of launching it in SteamVR mode (with slower performance). Anyway there are exceptions of apps, that do not support Oculus SDK nor OpenSDK.

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There is no specific answer on this question. If you own PC VR Oculus headset, it makes more sense to buy products in Oculus Store due those 2 reasons: 1. Some of them support Cross-buy with Quest platform, so if you own a Quest in a future, you'll automatically be able to play cross-buy games from your library on Quest without PC 2. Games from Oculus store usually pass more serious testing and pre-release analysis. There is a chance that STEAM version of the game won't have Oculus SDK mode and will be working with glitches, but when you buy the same game from Oculus Store, you'll get a OculusSDK-powered version of game with much better performance (such an example is story-rich game Wanderer). We usually add information about game's performance in our reviews so you could find this information for almost all PC VR games we review.

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Yes, you can connect your Quest directly to your PC without using your router as intermediary to decrease delays and lathency. To use it you should use external USB wi-fi adapter or motherboard should have integrated Wi-Fi module supporting faster speeds (perfectly Wi-Fi 6). All this makes sense if at least one of conditions is your case: 1. Your router is quite slow to provide necesary bandwidth and your PC's adapter supports faster speeds. 2. Your router is in another room and you wish to play near your computer, but signal strength is too weak to bring you flawless gaming experience. If you decided to proceed, you need to use Mobile Hotspot feature in Windows 10/11 to create a hotspot from your computer, connect your headset to this hotspot and then use Oculus Airlink. It is VERY important to know about a stupid bug, that isn't being fixed by Microsoft and isn't much known in the community, but is absolutely critical in scenario of using Airlink. The first device, connected to your hotspot isn't getting a full speed, so before connecting your Quest you need to connect with your phone (or any other device) to your windows hotspot. When you connect as second device, you'll get a Full-speed (Wi-Fi 6 if supported) and you'll be able to configure your airlink to maximum quality/bandwidth. 🔗 Generate a link for sharing this answer

Yes, you can improve the pureless of dark colors if you use Oculus PC VR headset. Use this small utility by running it and selecting "Set Full Range" button. After that restart your computer and as a result the range of dark colors on your headset would be extended. You don't need to launch that utility anymore until you updated your GPU drivers. Unfortunately at the moment this utility works only with nVidia GPU drivers.

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Yes it's a common problem if you have limited amount of storage on your system disk. But there's a trick: you can use Windows paging file to reserve some space necessary to Oculus updates (usually it's 12 GB). You need to go to "This PC's" properties and hit "Advanced system settings". Then hit "Settings" button of "Performance" section and go to "Advanced" tab. Then hit "Change" button, select disk where you have your Oculus software installed and choose "Custom size" option. Set amount of space you want to reserve (12 GB) on both "Initial" and "Maximum size" and save the changes by hitting "OK". When Oculus update is out, open this again and select "No paging file". It will ask you to reboot PC and free reserved space so you could install the update. After updating Oculus software don't forget to repeat the first part of instruction to reserve a space for further updates and turn the swap file back on.

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Yes, you can install it to different disk if you launch the installer with argument drive=DISK_NAME, for example: OculusSetup.exe -drive=d.

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Yes, you can use Guardian Boundary Editor. It allows you to edit Guardian manually.

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Yes, actually there is a way to turn of your Oculus PC headset without plugging out the USB cables. The most simple way is executing two commands using command prompt with admin rights:
net stop "OVRService"
taskkill /f /im "vrmonitor.exe" /t
It will disable the service and software and also turn off the power on your headset while you don't use it. To make this happening by default you need to disable two services automatic startup, using administrator-priviledged command prompt's command sc config OVRService start= demand. But you need to turn the service on every time you use your headset. This is being made by executing these commands command prompt with admin rights:
net start "OVRService"
Start "" "C:\Program Files\Oculus\Support\oculus-client\OculusClient.exe"
If you have different set ups for different rooms, you might crate pseudo-profiles (using cmd's mklink /d command) and keep different set ups of Oculus sensors/Guardian for different sets of sensors

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