I’ve got some standing orders of 1 or 2 euros every month for bigger projects like grapheneos and kde. And for small apps that I actively use, I try to donate 5 or 10 euros now and then. It’s not much but I believe if everyone is doing their part we succeed in the long run
Don’t have anything recurring. More like random $10-20 thrown here and there. It’d probably be more often if it was all more integrated/streamlined. Pretty much the hyped up Flathub payments feature someday. I’d do that more often than patreon/opencollective/etc. I’ve had a patreon sub for a few projects over the years