Does anyone think otherwise?

Thank you for the suggestion. I actually figured out a simple solution, I changed my router from router mode to access point mode, and then connected the ethernet cable to lan port instead of the wan port, and that fixed everything.

Tried that, does nothing unfortunately

The problem is not with the Wifi speed per say, its with some website and services, like steam download speeds are as expecting, but browsing Reddit for example, or downloading flatpaks or github is super slow.

Linux 6.16.4-116.bazzite.fc42.x86_64

Built-in Wifi from Motherboard, MSI B850 Gaming Plus Wifi

From PC

Nah, I would spare the machine and install Linux on it