Had a similar situation, my room is I get on my Xbox 200+mbps but when I used my desktop PC with a bog standard WiFi adapter it was struggling to get 50mbps and kept dropping signal during downloads.
I ended up buying a well reviewed USB WiFi adapter with a good antenna and now get the full 200mbps. This might not work in your case but it’s worth a try.
The USB WiFi adapter I got was tplink archer v2. 0
Had a similar situation, my room is I get on my Xbox 200+mbps but when I used my desktop PC with a bog standard WiFi adapter it was struggling to get 50mbps and kept dropping signal during downloads.
I ended up buying a well reviewed USB WiFi adapter with a good antenna and now get the full 200mbps. This might not work in your case but it’s worth a try.
The USB WiFi adapter I got was tplink archer v2. 0