From the github driver project you linked:
As mediatek wifi mt7902 wifi 6E works fine in windows 11, however linux does not implemented its driver as it is new and mediatek does not respond to making a driver for linux.
Mediatek has been very slow to get many of their WiFi drivers working properly in Linux of late. It could be a long wait before your present Mediatek WiFi adapter receives full Linux driver support. I would suggest purchasing an older USB Atheros N model WiFi adapter until your internal adapter’s driver is functioning properly. Buying a cheap older Atheros USB adapter based on the ath9k driver will give you rock solid Linux support. It will however be considerably slower than recent USB offerings, but it should be adequate for most internet activities, (unless you are a gamer).
You must be aware that there are frequently Linux driver support issues with many newer USB WiFi adapters. It can unfortunately take quite some time for manufacturers to work the bugs out of their newly released Linux WiFi drivers. There are newer USB WiFi adapters that work perfectly well with Linux, however there are also many that don’t. You must do your research very thoroughly when making any WiFi purchase intended for use with Linux. Otherwise you may end up with another dud on your hands, so buyer beware.