i dont remember it ever not happening. my current board is the only asus product ive ever owned because i was always wary of it, that and its a bit like buying nike(paying extra for the name), but it was what was in my price range... it has been totally fine though, so far.
adapters arent magically going to fix the driver issues. those usb-c ones arent really adapters, they have built in video chips. he'll also have to buy several of them and have several usb 3+ for them to work.
if your adventurous you could try these: https://www.reddit.com/r/XtremeG/comments/1c5ytz8/xg_nv_55222_desktop_win1011_x64/
(modded drivers, supports 700-4000 series)
A 5700 on w7? are there even proper drivers for it?
quickest thing i could test with was manor lords, i do not get freesync in windowed mode. i only get it in borderless full screen or reg full screen. doesnt work with pga 2k23 either.
google says the monitor has to be connected via DP for it to...