That doesn't have anything to do with native vs web though.
Twitter's native app is heavier than their web app because Twitter has historically filled the native app with junk (like a fullscreen video just for the login screen, "moments", "highlights", hijacking browser URLs, a bunch of ads and ad tracking, etc). Facebook does the same, to an almost silly degree - https://news.ycombinator.com/item?id=8162342
The Twitter client could easily be ~3MB on Android, for instance, if they just stripped the garbage out. And similarly, if you take a web app, and embed all that same junk into it, it will suddenly be a heavy download too.
Twitter's native app is heavier than their web app because Twitter has historically filled the native app with junk (like a fullscreen video just for the login screen, "moments", "highlights", hijacking browser URLs, a bunch of ads and ad tracking, etc). Facebook does the same, to an almost silly degree - https://news.ycombinator.com/item?id=8162342
The Twitter client could easily be ~3MB on Android, for instance, if they just stripped the garbage out. And similarly, if you take a web app, and embed all that same junk into it, it will suddenly be a heavy download too.