There are several species of yellow coloured waxcaps. These may be butter waxcaps peeping through the short grass.
There are worm casts to the left in this picture.
I presume that when this garden was given a slate chipping mulch, it was to suppress anything trying to go there. It didn’t work with these mushrooms.
The fungi are inkcaps. Possibly they common inkcaps, a species which is actually not very common. But I wasn’t about to step onto a stranger’s driveway for a closer inspection.