Operating system: Manjaro Linux Kernel 5.10.15-1, KDE Plasma 5.20.5
Graphics card: XFX AMD RX 570
Broken: 2.93.0 Alpha, dae445d94a7a, master, 2021-02-13 (I compile everyday and it looks like every version is broken)
Bug: Vertex colors are not visible in object mode while viewport shading options are set to "vertex" and lightning to "flat".
Steps to reproduce: create cube mesh, move to vertex painting mode, "set vertex color", move to object mode, change lightning to "flat" and colors to "vertex".