Confirmed, Ubuntu 16.04 on dell xps works fine, and the added boost in perf is noticeable (or the placebo effect is not).
Re:Firefox 68.0
by realusername on Tuesday July 09, 2019 @11:25AM
(#20392685)
On my case that just results in a black page for every site.
You can enable/disable webrender in about:config if you want to try it out (gfx.webrender.all). I've switched to it on my laptop (HD Graphics 620, Gentoo Linux). So far so good.