There are three implementations you’ve listed for actual rendering: WebKit, Blink, Gecko. And it’s unlikely we will ever see another due to how complicated they

There are three implementations you’ve listed for actual rendering: WebKit, Blink, Gecko. And it’s unlikely we will ever see another due to how complicated they are to build. It’s been becoming less diverse for almost two decades now. And you’ve ignored the fact that every web view we have had on desktop so far is kinda crappy and sluggish when at least well built native apps generally feel snappy. Webviews are one step about shitty Java apps (you know the ones) in terms of UI. Beyond that there’s the RAM usage. Be no longer amazed that people can have these problems which no web app they have used has overcome on three or four different computing platforms.