@freemo yeah, the previous setting was telling openwrt to get internet and dns res from 192.168.2.1, but actually the current gateway in my new apartment is 10.0.20.1😂 , lovely that openwrt straightens it though. I told openwrt to not do dhcp and the stuff so it comes from the shared router isolated network stuff.
@freemo yeah it came in handy that I had like 4 Archer C7 1750 laying around from when I was doing freifunk free wifi previously, wouldn't make much sense doing that on the 3rd floor now though😅, it was as straightforward as uploading a firmware update.