Have you tried Patreon? I had the same experience with a donation button. But a Patreon button magically gave us steady money to support infrastructure.
Yeah, as a (small/tiny) donator for 3 projects so far I personally liked Patreon - neat, simple, it works.
There are 3 other projects to which I'd like as well to donate something but they're all using different services ( https://donorbox.org , https://ko-fi.com , https://liberapay.com ) => I don't want to lose control over my donations and creating accounts there as well would have that effect on me.
Therefore, I think that somebody that would like to receive donations should try make multiple options available - hoping for the opposite (that whoever donates will use the specific service that you chose) won't work.
Seems like linktr.ee does a good job of aggregating links. So, the "donate" link could link to that, which then displays a bunch of options. However, I believe that a familiar icon - like the patreon icon - helps people make decisions.
Yeah, I'm a patron of multiple people, from Authors to people running a website providing info on a game, that are making $10k-$20k a month in Patreon from those projects through $5-$10 monthly payments. It's amazing how much money you can make, but I think you really do have to offer something to get people to bite.
