Left and right bearing anomaly of number 5 along axis 'opsz'

[quiple]

Describe the bug
The variation of the left and right bearings along the axis 'opsz' of the number 5 does not look consistent. The bolder the weight, the more prominent it appears. Other numbers, like 3 or 8, look fine.

Screenshots

Additional context
I checked this out at https://rsms.me/inter/#glyphs and https://rsms.me/inter/lab/.

[rsms]