@katharina_buholzer well, you need to be more specific when you mention UI issues. I'm the maintainer of a niche client, tooter, on a niche mobile os, SailfishOs, and we likes are just trying to keep up with the bugs. This is unpaid work we do because we're into community company and not community as commodity. Onboarding is an offensive word, btw.
@poetaster
I do not know wha onboarding might be offensive. It is a short word for the process of getting people onto a platform.
the UX issues I mention are more related to the web interface. I am aware of some clients out there enhancing the experience. As a rule: I do not recommend using any social media app on a smartphone.