Weird memory leak issue with OpenGL

[DrTails]

I tested enabling the log frame drops, but it didn't change anything.

However, enabling the FPS counter does indeed stop the memory usage from increasing.

I was already running the latest build, 1.12.3, which has the issue.
But as suggested, I also downloaded the linked 1.3 version and tested things there. No increase in memory usage in that version.
I also tested the games in the latest build of Retroarch with OpenGL (no FPS counter enabled or anything else), no constant increase in memory usage happening there either.

So could this still be a graphics driver issue?