I am currently building a widget to place in the off-canvas widget area that involves a multi-depth <ul> as a product filter. Unfortunately there is some CSS in the generatepress/assets/css/main.min.css which hides .main-navigation ul ul. I think this CSS should be more specific to target only navigation<ul> elements. Forgive me if I have misunderstood/am misusing, but hope this is helpful if not.
yeah we are aware of that, it’s a hard one to change without potentially affecting sites that may be fine with their widget area / hooked content inheriting those styles.
For now it means treating the affected widget with some additional CSS – do you need a hand with that ?