I don’t see Apple going the route of bundling Chromium. Catalyst does allow porting iOS apps to macOS but it’s been not great so far.

I think there will always be a category of people who prefer using native apps for performance, security, or access to OS features. Anecdotally I looked at the apps I have installed and I found out that I don’t have many electron apps on my Mac beside chat apps and VS Code. I suspect non tech-savvy people might have even less, since they do a lot more inside their browsers compared to before.

I’m not sure what you refer to when you say “native desktop apps aren’t coming back”, given that they never left t begin with.