I have Linksys WRT1900ACS that I was using since 2016 in my old 2200 square foot home - 1100 sq ft per floor.
It was working great, but I was moving into a new 3000 sq ft home, so I thought I would upgrade to a mesh system.
I bought a Nighthawk Dual-Band Wi-Fi 6 Mesh System (MK62) and it worked...