You’re certainly right, it only pertains to the services you externally want to access.
So, to be thorough, from what I gather, you’re looking for:
Good throughput performance wirelessly (Honestly, there may have to be a compromise here, unless you want to route some Ethernet cables through your property). For multiple devices (Let’s say 4k Streams and Videogames, maybe conferencing as well if you are so inclined to work from home, all at once?)
This probably means you want something with as many sub-channels available throughout the 2.4/5Ghz band? 6Ghz even.
Something that works well together (So yeah, as you said 802.11r or other solution, take Asus’s AIMesh for example with their AX series routers).
Freedom of configuration (For Parental settings, maybe even setting up VPN?).
In line with what I know, Maybe something like this could be to your liking? or this Beauty from NetGear.