Proton Desktop is not linked to your phone in any way, so enabling stealth there doesn’t have any impact on your device unfortunately.
Interesting to hear about Mullvad, maybe they did change the protocol around! My backup had always been Windscribe, they give you 10 GB traffic for free, but the reliability in China went downhill over the last year.
But my days are numbered now anyway, will be out end of July, and still got Astrill prepaid until November or so, so not going to experiment too much now.
Why not use Firefox Relay? It’s a mail forwarding service with 5 aliases in the free version, and unlimited in paid. I’m using that in combination with my gmail account and it works beautifully.
If you only occasionally need a vpn, the free tier in proton is probably sufficient (but you can’t select servers, they will be assigned at random), and you could use windscribe as a backup (you can select servers in the free tier yourself, but traffic is limited to 10GB per 30 days).
That announcement was the biggest eye-roller all week.