How can a user find out which system level is on the device?

Do I well think that the system level is the first number of CIQ version?

My f6p has CIQ 3.2.8 - level 3? Venu 2 should have CIQ 4.x - level 4. Yes?

Is does mean that if some device has level X it support all level less than X, so if my  f6p will get level 5 it means that will support createBufferedBitmap?

I can't still run fenix6prosystem5preview device

how to fix it?