Oh gods yes.
I get so many bills that are dirty, but also you don't wanna know all the germs that are on a lot of those bills. Another thing I learned from years of working in retail is that people are also disgusting as all hell. Many people don't bother washing their hands after going to the bathroom, or they'll hand you nasty sweaty bills they pulled out of their pocket after walking into a store or up to a fuel kiosk during a >80 °F (26 °C) day, or after working a shift in construction or a factory job or even simply just exercising. Some women will pull cash directly out from under their bra, as if I want to accept sweaty boob money. Yes, they could use a wallet. However, many people don't. Rather, they just shove the cash directly into their pocket or bra and be done with it. Because fuck cashiers, I guess.
Not to mention that the majority of bills out there have at least some trace amount of cocaine or other drugs covering it, though you may not be able to see it.
So, in short, sorry for the ramble but, yes, people are absolutely disgusting and so is their cash.
Retail. has. fucking. ruined me.
/rant lol
AFAIK Proton is the only one, or at least one of the very few, in the market that supports Port Forwarding. Mullvad got rid of theirs, which frankly sucks because although my experience has been (mostly) great, I've also heard great things about Mullvad, and it's best (and nice) to have competitive alternatives to choose from.