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Detectable difference in experience obviously depends on what you use the device for, but there’s a lot more thought in, and real estate/power budget for, the antenna array in something like the aforementioned Mikrotik box as opposed to the average afterthought-with-a-pigtail in a SFF PC or bit-of-string dipole poking out of a USB dongle.
If I was looking to buy a WLAN adapter for a stationary device with an Ethernet port, a discrete station is a no-brainer imo.
I’d go for a separate wireless access point in ‘station’ mode, attached to your PC via Ethernet cable.
Something like a Mikrotik wAP, cheap & powerful: https://www.wifi-stock.co.uk/details/mikrotik_rbwapg-5hact2hnd_wap-ac_white.html
Will work infinitely better than any USB/miniPCIe WiFi card.