Dual router with 5 gig

Hey there, sorry if this is a bad place to ask. I'm moving soon to a large house and plan to opt for 5gig service. I see they offer two routers when needed and I'm curious about the wifi7 routers capabilities. My goal is to have all 4 PCs in the house hard wired, do the routers have that many outbound ports? Are they gonna be limited to 2.5g or are they 10g? Another question, with the dual router setup are they entirely mesh network based or could I hard line them together? Ideally I want one downstairs hooked into the ONT, then a line run to the one upstairs and if needed layer plug all the PCs into that if the wifi isn't sufficient or I just feel like it. Anyone have any experience with this type of setup?