Hmm looking at it now on the next morning I think it's not worse,but also not really better :D

Looking a bit more at the rest of the code, maybe this whole function is not needed anyway, it effectively adds spacing between the widgets, which should also be achievable via the Rows's spacing parameter

Yep, the custom logic was unnecessary indeed, using spacing: 8 looks the same in the puzzle dashboard and the user perf cards. For the storm dashboard, there's a very slight difference, but it's actually an improvement: The boxes (all-time, this month, this week, today) are the exact same size now (it's very subtle, but I measured it in inkscape):

Before:

After: