Extraterm. A cross platform terminal enumlator

I've actually never understood these arguments as they're often times made. Can many (all) Electron apps be made much more efficiently in other ways? Sure, but so what? As a fact by itself, why should I care? It's a meaningless factoid and only in specific contexts does it matter a whit.

If an Electron application: 1) Provides valuable services to the user; and 2) provides those services sufficiently well enought that the user isn't troubled by the experience (or even enjoys the experience)... anything else is just noise. In some contexts, that memory issue matters, but not nearly all.

I'm finding Extraterm working relatively well so far. Seems to be performing where I want and providing a good terminal experience. It's taking a metric shit-ton of RAM from what I can tell compared to what I might expect, but... I've got RAM to burn, so it doesn't phase me in the least, I mean I don't earn interest or anything by saving that RAM so as long as that's the only ill... I'm doing pretty good. And if I want to tackle the most egregious consumers of resources, there are other, worse violators in that department... like Firefox taking an order of magnitude more RAM just to show the Hacker News tab that I'm editing in.

Of the terminals that you list, Alacritty looks interesting and I've been following a bit, and the other two are non-starters for me as I need cross-platform tools (Windows and Linux specifically).

Anyway, like most things in (professionally competent) technology, most things are good or bad only within certain contexts and use cases. Over generalization amongst practitioners tends to be a larger and more present sin than applications taking more RAM than some would like.