I see no compelling reason to move to Windows 11 until Microsoft has had ample time to work the bugs out. I'll upgrade when it makes sense, but not before. Used to live on the bleeding edge but lost too much blood doing so.
Your mileage may vary. I had a completely different experience trying to RMA a Gigabyte motherboard. It was still in warranty coverage and the RMA was rejected because of a spec of dust. They returned the board to me with the refusal and a zoomed in picture of the dust mote (on the PCB, not...
Your overclocking results may vary, and pushing a card too far can degrade it's performance. Sounds like you pushed things a little too hard?
XFX Speedster MERC319 RX 6900 XT BLACK
Base Clock 1825 MHz 1950 MHz (+7%)
Game Clock 2015 MHz 2135 MHz (+6%)
Which Adblock extensions are working for you, because uBlock Origin doesn't seem to be catching this for me.
I've also allowed TPU on my whitelist for some time now, but with contentious ads this glaring and obtrusive, that is ending immediately.