I almost don't do donations at all because i either don't have the money or they don't support the swedish version of cashapp, swish. Every time i have wanted to donate anything to anyone this had been the issues i face, except for one twitch streamer who became one of my better friends and one server hoster who i later on realized alot of bad things about. In both of these cases there was no transaction fee.

TL;DR Swish takes no transaction fees but barely anyone takes swish. The few times i have the opportunity to donate i usually don't have the money to donate.