Game will almost never finish compiling. Occasionally it will finish and let me play after rebooting / verifying files / clearing direct x shader cache several times.

Yep, same exact issue here. Looks like we're waiting for another patch.

Hmm I cleared DirectX shader cache once and it did the trick

Same problem here. Even with today's patch and verifying the install.
[Edit] Cleared DX caches and alas, didn't work.

I use mod that remove shader compilation, it doesn't affect the game whatsoever, so I have no idea why the F it is still being done since the first game SoC, it doesn't improve anything.

Mod that I use is "STALKER2Tweak (Ultrawide fixes and more)" from Nexus mods, but you can search within Nexus Mods "compiling" keyword and you will find two more modes at least that remove shader compilation garbage.

I've been running my mod since early patches and I have no issues besides the average crashes by broken game.