I used smart launcher right up until they pushed an update one day that made my phone basically unusable. The launcher would just error whenever I went to my home screen, making the launcher (and thus home screen completely unusable).
After that I changed my 5 star review to 1 star, uninstalled, and there is absolutely nothing they can do to ever get me to trust them again.
Failing that hard at QA on something as critical as a phone launcher is completely unacceptable to me.
If you want evidence, look at reviews from Jan 2022 on smart launcher 6.