Judging by all the snap and flatpak conversations here, I'm guessing that most Solus users don't have the kinds of problems you're having with both of those. I, for one, have used both snap and flatpak without any issues.
The ones most likely to be able to suggest possible solutions for you are the development team. They're mostly professional developers with full time jobs, and they create and support Solus as an act of love. A couple of them are working on their PhDs as well. And they're probably in time zones different than yours, so that might be a factor as well.
If you'll be patient, you may get the help you need, but not necessarily in less than a day.