Hi. I’m using Blender 4.4.3. The grid is invisible, except when the middle mouse button is pressed. In Viewport Overlays, Grid is checked, but is greyed out. I’m not invoking via Blender.exe, but via blender_debug_gpu_glitchworkaround.cmd, because Blender immediately crashes upon startup otherwise. I’ve been forced to use the workaround since Blender 3.0 as I recall. Could that be causing the disappearance of the grid? Before anyone asks, I’ve updated my AMD display driver (AMD A6-5200APU with Radeon HD Graphics), but that doesn’t cure the crash problem.
Sounds like you need to file a bug report.