…only technically, if you disregard its barely supported wireless side (54 MBit/s max.).
Neither of these devices are sensible choices when it comes to running OpenWrt, as they're both all-Broadcom designs (and support for Broadcom wireless is between completely non-existent to close to non-existent) - your google wifi satellites actually have a better chance of being supported (depending on the exact model).
But there's not really anything provided to give you advice, as you don't really raise the topic why your google wifi is lacking (e.g. which aspects you're hoping to improve), nor if you have a wired backhaul in place to connect your APs. Wifi coverage in an existing house always depends on the exact circumstance, building materials, number of walls and floors, kind of a rough idea of the floor plan (the more you diverge from a cube (well, sphere), the more this matters) - the number of square metres doesn't really tell a story.
In general, you can expect the characteristics of most 'normal' wifi router antennas to be donut shaped, meaning they're optimized to cover your floor horizontally - not vertically. While you can typically get relatively good reception in the room directly above/ below the router, the adjacent rooms in the other floors tend not to have good coverage.
A wired backhaul/ backbone of your network always trumps wireless backhauls between your satellite APs (repeater effect), regardless of any advertising promises given by your vendor. Meaning you should really look into the feasibility to use wired ethernet at least between the different storeys (and ideally to the places where you need it most, e.g. TV/media room, office, etc.), using one wired-AP per storey (with a good channel plan, optimized (==lowered) tx power settings, etc.).
If you have to resort to connecting everything wirelessly, that is possible - but far from great.
As far as dealing with 1 GBit/s WAN is concerned, this still applies (especially is you add VPN connectivity to a commercial VPN provider to the wish list):
These days I would look into alderlake-n/ n100 based mini-PCs with four 2.5GBASE-T ethernet ports (roughly starting around 130-250 EUR), with as many wired APs as you need (if you can rely on a wired backbone, these may even be rather cheap, if not it's going to be more expensive).