I feel like this might be a long shot but wanted to see if anyone else was running the tailscale plugin for Opnsense. I have everything set up when my opnsense acts as an exit node. The clients connect up to the exit node just fine but I wanted to redirect traffic to a different gateway instead of my ISP gateway. I tried setting up tailscale net as the source on the tailscale interface to route traffic to a specific gateway but it doesn't seem to work. It seems like tailscale ignores all of opnsense firewall rules which is a lot different than what I am use to working with the wireguard interface on opnsense.
It was honestly just down for about 2 hours. I hate how you can find out about the status of proton services being down faster on their reddit subreddit than on proton's status page...
Proton's official response on the outage via reddit (wish they would move to lemmy):