Oh, that's right, thank you! I've found the PSUserConfig file already existing in this folder (it must be the one I copied before the PS update). It means that the pen tilt still doesn't work with Windows Ink off. Also, after the latest update the brush tilt image (just like the one in the first post in this thread) doesn't appear. I'll try turning the Windows Ink on to check if it's any help. If it's not then I'll look further for the solution.
I deleted the file and turned on the Windows Ink - pen tilt started working! I hope that no bug emerges now and I'll be able to just continue using it 🙂 Thank you for help.