Moreover, if you're working on a desktop app, you don't want to introduce an extra dimension where bugs can be present. I've seen people downplay this, but diff

Moreover, if you're working on a desktop app, you don't want to introduce an extra dimension where bugs can be present. I've seen people downplay this, but differences in browser behavior is absolutely a source of potential bugs / was a source of much frustration for me when I worked as a web developer. You want everything to be as deterministic as possible. If you ship an app today, you don't want to have to deal with future updates potentially breaking your code. I pretty strongly feel that OS-vendered web browsers executing desktop applications is a fundamentally flawed approach compared to the alternatives, it maximizes useless churn.