While this is stupid, it's also minor and doesn't really deserve such clickbaity titles. You'll only be locked out for 24 hours, which is not long, and you'd have to switch Proton versions 5 times within 24 hours for this to happen, which should be very rare to begin with.
I play exclusively on Linux/Proton for years now and at the MOST I've switched Proton versions like 3 times within 24 hours, 99% of the time I switch them never (because 99% of the time it just works) or just once (e.g. switching from regular Proton to Experimental or GE-Proton, which might help wth very new games). That means I would probably never be affected by this.
I"m not trying to defend this, this limitation should not exist, but I'm trying to position this correctly because the titles are misleading clickbait, they suggest you'll be locked out permanently.
This might not matter anymore, unfortunately, because there might be no meaningful future elections (at best - fake ones where Trump always turns out winning). He will just keep ruling and then define that everything's always great with his rule, no matter how it is in reality. To have him win this past election was a historic mistake that will be extremely costly. Of course, no king rules forever, but the damage during his rule as a criminal king will be massive (not only caused by him alone of course, but enabled and accelerated by him).