Honestly, as for me you should check out routers with Wi-Fi 6 standard. As for Mesh systems, you'd have more than 3 stations, and ideal may be TP Link X series, but the price bites. If you have or can place the powerline grid, then P series. If no -- M4, M5 series.
Currently having TP Link E4 2 stations, one in basement another in 1st floor (not a bunker style walls), and, no matter how and what I tried, there's a Bermuda zone, so every time when somebody move in/out the zone (somewhere between stations) or TV -- network fall for a short time (speed, ~600 ping or even connection drops). Affects one station mostly, but it's not a rare case to lose connection on both of them. Or it can hang by its own + some features like built in log viewer -- I mean, thanks, but it is useless because shows only weird internal events not related to a network behavior or devices.
So, be prepared for a few pitfalls. Not sure about other brands, thinking +- have the same behavior.