Interesting, which Mediatek card are you using? I'm thinking about doing the same thing.
I'm happy with it, but I did have to get a heatsink for it, since otherwise it overheats easily. Since I got it they released a couple of dual-band dual-concurrent cards like this one: https://www.asiarf.com/shop/wifi-wlan/wifi_mini_pcie/wifi6e-... , which is pretty neat, since you don't need to get a separate card for 2.4GHz devices.
One more thing - how is the signal range for you?
> One more thing - how is the signal range for you?
With four 5dBi antennas it's sufficient to have >800mbps in every corner of my single bedroom apartment. Other than that I have no means to test, sorry :)