Sometimes, my laptop’s wifi works pretty well. Other times, the download/upload speeds are much slower than normal (comparing to the laptop in question and my android phone). In more rare occurrences, it cant even connect to wifi (though it detects all of the networks available).
Do I need to install any drivers? In Manjaro Hardware Settings it says “Unknown Device (MEDIATEK Corp.)” with no installing options.
The MT7921 device is probably the culprit, in fact, it was multiple times mentioned in this forum, but it was supposed to work with more recent kernels.