Regarding banning platforms I’d say just ban the attention driven business model online by forbidding all social media platforms from serving ads entirely.
Same here, I've found too many bugs in Proton's email client and instead of fixing them they just release new products. FastMail support has been great, I think the developers themselves reply (some of the?) emails, going into technical details and being actually helpful.
Perhaps https://zorin.com/os/ might be a nice distro for your customers. It has 2 UI options: one that is close to macOS and one that looks more like Windows.
I’ve been having the same idea for a while. I think it would be a great way to let them prioritize the stability a bit more by publicly displaying how shamefully the UI behaves.
Interested in collaborating on this? Perhaps a simple open-source static blog built with Astro?
defaults -currentHost delete -globalDomain NSStatusItemSpacing