Minimum fps in export settings?

I was trying to play a bit with the export fps and noticed that I can’t set the fps to anything lower than 20fps.

When did this change? I distinctly remember I exported a 10fps timelapse a while ago. Is it dependant on other settings? I did try a bunch of default presets and all seem to cap at 20 for some reason.

The minimum is the video mode FPS / 3.

Oh so I am using a 60fps project so that’s where the 20 comes from. Thanks.
Is there any reason for this limitation? I understand of course a low fps export [vs video mode] is not something very common to use but it seems very arbitrary to be able to fully control advanced stuff like GOP and b-frames but fps needs an extra step to have full range.

Yes, a workaround for reliability.