I seem to be experiencing this weird scrolling issue with Brave 0.24, but also when downgrading to 0.23.34.
I think this has something to do with Trackpoint, since even Chromium/Chrome codebase has provisions for it. Basically I will be scrolling normally on a page, and then after every 5-10 lines it skips nearly, if not all the visible lines. When using other apps or Chrome the problem does not appear.
See this screencap:
Any ideas on where this is coming from?