Like I said, I'm not arguing that many apps are built as electron apps when they're just glorified web apps. Though I'm neutral on whether that's a bad thing or not. I'm definitely against apps being built with electron that don't really have UIs, defeating the entire point of electron and friends...
VSCode is another example you're missing. And they have put a LOT of work into making as many features available in the web-version as possible, the feature parity isn't an accident.
Or Obsidian.
Examples aside, you might be surprised by applications you may not think of as not using native features, that rely heavily on them, expecting to be executing in a Node environment and not a browser one. Especially on the networking and process side. Browsers are extremely restrictive.
Pretty sure it's me ADHD that causes me to accumulate tabs like this...
I'll have dozens and dozens of windows full of tabs.
I recently did a tab clean out before moving. And had tabs up from ideas or to do's or items that interested me from 4+ years ago.
Every time I restart my computer or close Firefox I always restore my previous session and get all those tabs back.