honestly, having a spare phone that sits at home is a great solution. Your main phone can be a native pixel/grapheneos (not lineage, graphene has no issues with feature comparability). And the spare phone at run all the apps for, idk, your robot vaccum, smart home, etc. At home you have more control of data and connectivity.

we all have old phones that can be used as spares. My 8 yr old phone is the “remote control” for my house. Using accounts that don’t tie to me, on it’s own vlan, pi-holed, etc