AMD Driver issues

Seeing significant driver issues repeatable across multiple CPUs/platforms with AMD drivers/software.

I just don't get it:

Forcing disabling of vsync via Nvidia control panel:

Works in STALKER Shadow of Chernobyl; FPS uncapped

Forcing 16xAF via Nvidia drivers:

Works in TES IV: Oblivion

Works in Operation Flashpoint

Playing Combat Mission games on 2014 engine with Nvidia driver:

Works fine

vs

Forcing disabling of vsync via AMD control panel:

Doesn't work; FPS locked at monitor refresh rate

Forcing 16xAF via AMD driver:

Doesn't work in TES IV: Oblivion

Doesn't work in Operation Flashpoint

Playing Combat Mission games on 2014 engine with AMD Driver

Crashes when loading 3d engine

I've verified this with R9 290X, Vega 64, and RX 7900XT AMD cards and GTX 780Ti, GTX 980Ti, GTX 1080Ti, and RTX 3080Ti Nvidia cards. AMD drivers significantly degrade user experience as outlined above; so at a certain point the relatively lower cost of AMD starts to become irrelevant when you realize how inferior AMD drivers are and that they continue to ignore significant broken compatibility as demonstrated with their breaking of Combat Mission drivers about 2 years ago or so. Not acceptable.

This is very frustrating and unfortunately likely to push me 100% into avoiding AMD cards unless a miracle happens and AMD fixes these issues; but given that some of them are years old...I doubt they will.