Ok figured out the origin,
I reconnected protonvpn and we are back in business. What is going on here? Why is my DNS being blocked when protonvpn is off? This is after multiple restarts.
I can reliably reproduce this issue if I logout without disconnecting protonvpn.
Really curious to find out the cause for this!
Did you activate protonvpn killswitch ?
It's probably leaving around DNS entries that only works while on the VPN, and depending which program is making the DNS query, it may or may not fall back to a public server.
Are you using /etc/resolv.conf?
I don't use proton but I found with tailscale it's much more stable to use systemd-resolved because it doesn't overwrite resolv.conf. I don't know if this is the case with proton as I don't know how it treats different resolvers but I would look into it.
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