I bought an ASUS mesh system, I think it’s like the rx-92?, based on suggestions here previously. I love it, the ui is incredible and you can tweak lots of settings. For 2 units I get pretty good coverage in my home with masonry blocks all over the dang place and thick wood everywhere (it’s a 50’s home). I can even use ddns and an OpenVPN connection on it with very little work, and it supports a lot of other things like printer sharing and file serving from a usb drive. It’s about 400 bucks. It’s not “enterprise” but it’s just as good and has none of the cloud bullshit.

It's very easy for a 1gig connection to saturate residential hardware, especially if you have a symmetrical connection which I assume you do if it's fiber. Definitely look into Ubiquti, I posted above a bit more on my setup. I hear the concerns, there are other options but IMHO they have downsides. Going used is an option if you can locate working true enterprise equipment from an office but make sure there isn't a recurring software license on the equipment which many of the vendors implement. I've actually known of offices ripping out their perfectly fine, working equipment because it was cheaper to switch to a different vendor than continue to pay the license fees.

Ubiquiti Unifi setup is the sweet spot, good hardware and software at a decent price.

Used ruckus wireless AP on ebay. I have a R720, works great.