nativefier VS epichrome

Oh by "Web Environment" you mean "my machine" lol!

I already got caught by this - a https://github.com/nativefier/nativefier app wrapping Youtube Music doesn't work, because Google detects somehow that you are not using a trusted browser and refuses to serve.

AFAIK there's only nativefier and peppermintos' ice.

Install Nativefier from Terminal using the command npm install -g nativefier

Something like nativefier perhaps?

It's still not quite the same as Chromium webapps, which are just isolated windows in the same core process -- FFPWA spins up entire other instances of Firefox -- and in effect operates more like Nativefier (with Firefox instead of Electron/Chromium)

is Electron considered a browser? cuz Nativefier is what i use

Epichrome (https://github.com/dmarmor/epichrome) is slated to set sail on Dec 31st.

Epichrome

Yes. But you can also do this natively via Chrome and Chromium-based browsers as well. Though not Linux specific, I've used Epichrome to create single-site-browser apps on macOS for this purpose. I have, for example, multiple apps for Gmail - each with a Gmail icon with the username displayed on the icon so I can easily switch between several Gmail accounts without confusing them, all while keeping cookies and all local content separate. Epichrome: https://github.com/dmarmor/epichrome

You might find this useful https://github.com/dmarmor/epichrome. I haven't tried it personally, as I really don't care about the dock. I only use Mission Control or switch using the 3 fingers gesture.