in the first picture, the black seeds with the white are purple lablab purpureus. I think the yellow of the same shape are white lablab purpureus. the red pinto bean looking beans are obviously also a bean family but is it pinto? Do not know. Could also be bush bean. the second picture I do not know.

Potting soil / compost often breeds mushrooms. I have some under one of my trees too. They show up in damp weather. Mine look different than yours. I have no idea what the eggs are. They are under the leaves too? Figs don't have many pests. Mine get spider mites in summer, but I've never seen those blue eggs. Try the Name that plant forum. They might know. or do a web search.

2nd photo: possibly Austrocylindropuntia subulata

Lolllll, at this time of year, I always seem to burn up my plants, so I like to keep most of them in bright shade. I'm also negligent when it comes to watering, so bright green with a bit of blush is what I get wit has this plant. I'm happy with that ☺ Yes, I do keep my plants under lights in the winter time. This year I'm setting up a bank of LED's. Nothing fancy mind you, I tend to be rather lazy & repotting, occasional watering & inorganic mix is the extent of my care. I haven't been at this very long, my oldest plant is probably 6 or 7 years old. My aim is simply to keep these lovely textured plants as long as possible. I have recently stopped replacing plants that don't perform well for me.