As a German, I always found French to be incredibly regular. At least in the sense that from spelling you can easily infer pronunciation. The other way around is trickier. At least compared to German, which tries to strike a balance between the two directions. Compared to English, French is still pretty reasonable on that front too

There is a large number of digraphs and trigraphs (do we really need three letters to spell an "o" sound?), but unlike English digraphs they are actually regular: eau is always pronounced the same, while English has at least four different ways of pronouncing gh. French not pronouncing some word endings in most situations is also a bit weird, but that also has pretty regular rules