I have a 9310, and the stock Ubuntu was OK. The biggest issue is thermald was older and limited the frequency boosting (so lower perf). I run 20.10 now with thermald master and kernel 5.10.1 (includes patches which enable pc10 sleep states and 400mhz cpu idle speed). Now it boosts and idles appropriately.

What’s “backlight oder hw acceleration” are you referring to refresh rate or something like PSR? I want to know if it’s something I need to check on my 9310...