I do exactly that, though I run my VPN in the cloud (a scaleway instance which is only 3 euro per month). Using algo for the vpn: https://github.com/trailofbits/algo . I can highly recommend it! Though I had some issues with play store updates being blocked but that's resolved now. Unfortunately google play services are essentially one big spyware collection so it makes sense for it to block them.
I also had to manually provision my Android phone on IKEv2 (ipsec), Algo used to provide a strongswan config but unfortunately they dropped this in favour of wireguard. But you can still set it up manually (and on Samsung devices you don't even need strongswan). Wireguard is faster, yes, but my work blocks pretty much every port they don't know, except IKEv2/ipsec because many contractors use it to connect to their work :)
I also had to manually provision my Android phone on IKEv2 (ipsec), Algo used to provide a strongswan config but unfortunately they dropped this in favour of wireguard. But you can still set it up manually (and on Samsung devices you don't even need strongswan). Wireguard is faster, yes, but my work blocks pretty much every port they don't know, except IKEv2/ipsec because many contractors use it to connect to their work :)