I’m not sure how it works with PIA, but on Proton I can export multiple configs, let’s say 6 different ones with a combination of countries and other options.
Then I add them all into KDE and I can switch between them at will.
It’s a slight extra cost of time at the start, but after that it’s smooth and easy.
I do it that way for my kid as she prefers it, and the “normal” way for me, and it is identically easy.
I cannot understand the claim that it’s easier the seed end, it’s just not true.
It’s definitely cleaner doing it the normal way from the bunch end as you never get bits of banana on you if it’s a particularly squishy one.
Bunch end wins for me. Just as easy if not easier and no mess.