+++ This bug was initially created as a clone of Bug #1560520 +++
Windows 10 - Intel/AMD/Nvidia graphics card - Webrender ON
Steps to reproduce
The text animation should be smooth as on Firefox with webrender disabled
Text animation is choppy, not as smooth with webrender enabled, check the attached recording.
Interestingly, this seems to happen since WebRender got enabled on my graphics card (Intel), got the pushlog that points directly to Bug 1525128.
Bug 1560520 reported before and fixed did not reveal this issue too at the time being. Back then, only that specific test string animation was choppy, not all of them.
Might be video card driver updates (for all video card manufacturers?), but this doesn't seem to be a regression of any landed patch.