I've been fighting against tearing from an Intel HD Graphics 620 iGPU, on #Linux with #Xorg. After trying recommended options like TearFree and TripleBuffer, intel and modesetting drivers, even #Xcompmgr, nothing would solve it. #Wayland, on the other hand, works tearfree out of the box. Finally, I tried #Picom on X, a fork of a fork of a fork of Xcompmgr, and it worked! Its #vsync option, enabled by default, does the trick.