One of the many things I love about KDE is the beautiful way it handles GTK applications.
So much work done, from theming to icons and integration to Plasma fancies such as Global Menu to make GTK apps look and behave beautifully (except Firefox that tends to suck with its Global Menu, but the ball seems to be on their hands)

Sadly, installing GTK applications from either Snap or Flatpak serves very badly those efforts and do not allow the KDE experience to shine to its fullest potential. Everything from theming not respected to incompatible (and solutionless) behavior with Global Menu (and Application Title too) make those apps stick out like sore thumbs. And I know KDE is capable of making them look so beautiful and integrated.

I understand that KDE Neon wants to be on the edge of what is happening in FOSS and support Flatpak and Snap. But KDE Neon is also supposed to showcase the potential of KDE to its fullest, showing what a KDE distro is capable of. Seeing how those still immature technologies serve so very badly the efforts you put in creating such a beautiful environment, I wonder where this enthusiasm about those techs comes from (as using those repos seems to be clearly recommended by design on KDE Neon...) and it really baffles me.

I just find it sad to observe that and I wish there is a wise middle ground solution that can respects both the hard work put on KDE and its users who care to configure their environment to their needs.

Sure. The "snap" method imports and encapsulates all dependencies and auxiliary programs.