

I don’t use Battle.net but I had a similar issue when using EA Desktop through Lutris. The program would demand a restart to apply updates then would just shutdown and say the same thing next time you ran it, if it even still ran.
My permanent fix was to use Bottles for EA Games and it’s worked fine ever since then. Lutris works fine for everything else though.
A VPN is a must have for browsing the internet in the UK these days, our laws and only getting more Orwellian by the day.
By all means do what you must to avoid handing over data to our police-state government.