@monk @Conan_Kudo That is sort of different discussion, and I'd say "it depends" :-)
Podman Desktop is not just Electro app, it's a shitty app even if you compare it to apps made with Electron.
For a modern GPU the main glitch with web technology based apps is not that much the UI description language. It's more related to the software rendering pipeline from the 90s duct taped into composition based pipeline, and single core design duct taped into multi-core.
The difference between app and "non-app" is not really whether the app uses Gtk, QT or HTML. It's really the level of access to the local system resources. At least this is the conclusion you mostly likely end up with, if you start to specify more formally the difference between "an app" and "a web page".
I said this in some other thread too but Electron run-time on top of Servo could be pretty nice even for hardware with relatively slow CPU but still multi-core, and mediocre GPU. Servo is a software architecture that has been optimized with an eye for modern GPU's and multi-core CPU's as the primary targets.
Gtk and Qt only perform better because they have had a privilege to break backwards compatibility with the new major versions, not because they would do something magically awesome to get the rank of being a "native app", or their engineers would particularly be better in their job.