Between Surface Laptop 2 & Go (terrible Wi-Fi), Samsung Note20 & 20 (excellent, rarely trouble full WiFi 6 AX support), 2 - Apple TV4K (No issue), it's iPad Mini 5 and iPhone X that are main trouble. Never issue with 2015 MacBook but then its not using wifi, sits next to router and had ethernet (same as SurfaceLaptop).
I'm going to swap out for newer model Nighthawk, use an older Netgear as AP.
Happens most often mid-afternoon - maybe school lets out and neighborhood loop is congested? Rebooting modem/router is a temp fix.