There is a new feature of showing the equation incidence diagram in Dymola 2021X, but there are more nonlinear equation systems in the incidence diagram than in the translation log, so I am not sure how to compare these two statistics data. How should interpret this information?
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update at 12.23.2020: here is the result using Dymola 2021x - Hot fix-1
Dymola labels block as "Non-linear" when it cannot handle them, you will notice that these additional block are a bit odd as it says "Equation block: Calculations"; and not a non-linear tag.