I never encountered any app that refuses to install despite my device being stuck on Android 11. The only reason this sometimes happen is because of geofencing, or apps built for Pixel phones.
I only started to look for acquiring a new device because telecom operators are readying for a 5G launch next year, for which my current device is incompatible hardware-wise.
And unless something unexpected is happening, I'm going to get the A35, ie the latest version of the same lineage.