These are the fixes and tweaks that significantly improved wifi and bluetooth of my PC running linux, with motherboard built-in RTL8852CE wifi card, which uses rtw89 driver.
The main issue was bluetooth audio crackling/stuttering noticeably when network traffic on wifi is high (I was able to verify it by running a speedtest), especially on hi-res codecs (LDAC, aptx HD or SBC-XQ)
System:
- M/b: Gigabyte B850 Gaming X
- OS: Kubuntu 26.04