Github sponsors is an excellent platform.
I believe it lacks a really important feature: write and limit the posts to tiers.
As a patreon, it is helpful to provide posts and attachments for your circle of sponsors. It is useful for giving them prizes, previews or beta and could increase the desire to donate for a project knowing that you have “previews” which can be beta versions,previews, screenshots or even assets.
This feature could make me leave patreon forever and make me use github sponsors only.
P.s. I can’t find a thread / conversations in the github community for “sponsors” and I wrote here. If it is bad, please moderator move this post to the correct section.