Electron hasn't stopped Spotify from making the most widely used music client and VSCode from making the third most popular IDE.
The Web is a race to the bottom in the quest for eyeballs. If eyeballs aren't what you desire, you can give the set of users you do have a much better experience: smoother interactions, better adaptation to system preferences, automated security and functionality updates to components via the OS distribution, better accessibility, etc.
If you and OP want to disagree with the premise that used software is good software, and go in the opposite direction, that's fine - that's the point where we agree to disagree and go home.
I used to find my music elsewhere and could do it again if I had to.
I've had the spotify app crash my computer a few times. And then there was that fiasco a while back about it writing many, many gigs of data to SSDs and shortening their lifespan. Convenience will always trump software quality, but as soon as there is a competitor with better working software at a decent price, I'm jumping ship.
What about rdio? Back in the day, I remember noticing they had a much better music archive than Spotify in some areas like prog. Still, I never made the switch. (The way they organized music was terrible.) Apparently, neither did anyone else.
I could go on. All these Spotify competitors, all with decent libraries. How did Spotify end up winning?
I'm not saying that songs are unimportant, but if you have trash ux people are going to find an alternative.
(edit: I'm an amateur musician, I do know quite a bit about the online music sphere, and I've been a paid user of both Deezer and Spotify in the past. You usually don't know who you're talking to on the internet, so better don't assume things.)
Anyways, what I'm saying is that using electron is not really correlated to "bad app" and not using electron is not correlated to "good app".
That having been said, I don't use Spotify a lot, as the UI is really cumbersome and puts me off the entire thing.