I honestly do think that the main reason I'm able to take a break after graduation and focus on my comic is because of how much I saved from Webtoon. and while their programs have their downsides it's still way better pay than Tapas (which is understandable since Tapas is a smaller company)
The "Become a Patron" button at the end of every episode makes it so much easier for people to access my Patreon which helps a lot too.
I still do think you should post on both websites, you never know which one you might end up liking in the long run and you're really not loosing anything by posting on both.