It's not just electron apps or browsers, as I'd argue modern .NET apps are almost as bad.

I have an example.

I use Logos (a Bible study app, library ecosystem, and tools) partially for my own faith and interests, and partially because I now teach an adult Sunday school class. The desktop version has gotten considerably worse over the last 2-3 years in terms of general performance, and I won't even try to run it under Wine. The mobile versions lack many of the features available for desktop, but even there, they've been plagued by weird UI bugs for both Android and iOS that seem to have been exacerbated since Faithlife switched to a subscription model. Perhaps part of it is their push to include AI-driven features, no longer prioritizing long-standing bugs, but I think it's a growing combination of company priorities and framework choices.

Oh, for simpler days, and I'm not sure I'm saying that to be curmudgeonly!