Same issues. App crashes when selecting "Gallery" in the gear 360 app.
Never had issues with Android 10. Seems to be an issues with Android 11.
My phone is a Samsung Galaxy S10+.
Samsung, please fix the gallery bug.
Given that this is how Samsung chooses to treat its customers - breaking perfectly good kit, I will steer clear for my next phone. Given the cancelation of the Note series they offer very little anyway. Forcing folks to land-fill perfectly good camera's because you purposefully end support for them is not sustainable.
I am having the same issue, and I know that I can just remove the SD card from the camera and transfer the files to my computer or Note10+ that way... but I found another solution: I have an S7 nobody is using anymore, so I used that to connect to my Gear 360, and it was able to access the gallery. It's much slower, but it works. From now on, if I plan on using the Gear 360, I'll just use the S7 with it. It's not a perfect solution, but at least it makes the camera somewhat usable again.