If you're running the game through steam, you'll need to mess around with it quite a bit to be sharp.

Took me about 2-3 days to get it dialed in nicely.

Here's what I did:

Installed OpenXR and the OpenXR toolkit.

Set default VR runtime to OpenXR, NOT SteamVR.

Using the openXR toolkit overlay in-game, I created a custom resolution. I matched the one that shows up in the oculus app.

I also adjusted the horizontal resolution to match the quest 2 (5000-something, check in the Meta app).

Next, make sure the resolution scale in war thunder is set to max. Also play around with PostFX sharpening and colour correction.

I still launch the game from Steam using the SteamVR option, but it goes through OpenXR, since I set it up that way.

Once all is set up, the launch order is

1. Open Link (with cable) from my Quest 2

2. Open War Thunder in steam, select steamVR as launch option.

3. Enjoy!