The phone supports wifi 7, but not MLO?

Turn them all off. Then hold in the reset button and power one on only - the one with internet connected to it. If you want it to be an access point, instead of a router, make you specify that when...

@nwsquirrel Strange that they left it off the specs sheet. But other deco/routers say they support: NTFS, exFAT, HFS+, FAT32. Being on a mac your best bet is probably FAT32.