But that’s no different to running it in Firefox or whatever, it’s not a desktop app - it’s just JavaScript wrapper that is essentially doing the same thing but giving you less control and generally higher memory usage.
Sure. It's like driving to to the gym to run on a treadmill. But I'm not sure that other people doing something for themselves for their own reasons needs to be corrected because you or I would find it suboptimal for ourselves. If the person wants the thing, let them do the thing. What are we, the thing police?
Firefox does not have the WhatsApp logo, I cannot close and reopen a browser tab as easily as I can the nativefied app, etc. Of course it is different.