The list of supported phones is limited to pixel and samsung smartphones but you should be able to sideload from apkmirror and get it to run with some limitations depending on your phone hardware.
Supported on phones running Android 13 or later.
Samsung Galaxy S23, S23FE, S23+, S23 Ultra
Samsung Galaxy S24, S24+, S24 Ultra
Google Pixel 7, 7a, 7 Pro, 8, 8 Pro
How did you install the split APK? It works fine and can record 720p and 4K at 24, 25 and 30fps on my realme 11 pro. Your S22 Ultra should be much more powerful in comparison.
I used the nodpi version on apkmirror. It's not that the app doesn't run, it launches just fine. It's that it doesn't appear to be able to access the cameras, it's just a black screen and if I try to record then it crashes.
Also, I just tested it with the apkm via SAI from f-droid to make sure it wasn't an issue with the nodpi version; and I got the same result. The UI and everything loads fine, there just isn't a camera preview and it crashes if I press the record button.
Nope, CPU-Z says it's a Snapdragon 8. It's a factory-unlocked US model on verizon, and I doubt a EU/ROW phone would support Verizon frequencies (it used to be that phones in the US had to be made for carrier-specific bands, but that might have changed with LTE), but I used CPU-Z just to double check.