I'd say KDE and this agreement are why I would still consider using an open source version of Qt for a new project today. The whole KDE ecosystem will probably always need more stuff from Qt than me and I don't see KDE disappear overnight so I feel covered.
A Qt app is so much lighter, faster and more enjoyable to use than any electron app. GTK still doesn't click for me as a programmer. Alternatives don't feel as functional as those three options.
I like GTK, but the falloff in developer experience since 4.0 is really pathetic. Then there's a lot of petty changes I hate too, but that's a discussuon for another time. Word on the street is that KDE's maintainers plan to fork an older version of Qt for their desktop, but I guess only time will tell...
Edit: The KDE bit is wrong, I still stand by the first portion though.
