Circled mathematical symbols are too small to read.

[Soares]

The glyphs for unicode characters such as "circled plus", "circled times", etc. are rendered quite small in Hack, making it difficult to tell which one is which at small font sizes. For instance, compare ⊗⊕⊛⊙ in the font playground.

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• Font version: the one that's live on the font playground at the time of posting
• Where you obtained the fonts: the font playground, at time of posting
• variant(s) of the Hack fonts that are affected: I only tried regular
• jfont size at which the problem was observed: I found distinguishing these pretty rough at every size below 20pt
• operating system and version: ubuntu
• application where the issue was observed and version: chrome
• screenshot images that visually demonstrate the problem: can provide if you're having trouble accessing the font playground

[kbelcher3]

I would try to replicate the issue in another OS before opening an issue, personally.