I have them pop up even in planters when it has been hot, humid and rainy. I try to pick what I can find and dispose of them before they let go of their spores, otherwise they go away when it dries up. I just don't like to see them growing in the lawn, gardens and planters. Mine mainly show up in the more shady areas in the front that is shaded by two massive elms and maples. They are less likely to come back in that area if they didn't let go of their spores. Vinegar is a great anti fungal and antibacterial, but will kill anything that it touches.
Mushrooms are growing due to the moisture in the yard, either by a lot of rain and/or humidity. I have the same issue. I just leave them until I mow.