Yet another reason that #GNOME is only useful to a limited number of users with newer / more powerful PCs is it's dependence on #GTK:
"GTK requires hardware acceleration for animations"
https://arstechnica.com/gadgets/2018/12/a-tour-of-elementary-os-perhaps-the-linux-worlds-best-hope-for-the-mainstream/
... which means if your device doesn't do hardware acceleration for graphics, or #Linux drivers don't support it on your device, GNOME is going to use huge chunks of your system resources on animations. Unless you turn them off, in which case why not use a lighter DE in the first place?