I’m not an avocado specialist, but it seems to be a different variety from the avocado I’m used to forage (which is tagged as persea americana), as this one is rounder like a ball
I’m glad they shared it now, as I’m not to keen to climb the wall where I’m used to go, as it was filled with invasive african snails, which are known to transmit diseases around here
Perhaps it is time to learn how to safely make some escargot?
Those look like what gets sold as “Florida avocados”. Same species, just a different cultivars than the now ubiquitous Hass.
“Florida avocados” (wish I knew the right cultivar’s name) are lower fat than Hass, and I’ve found them to be less willing to break down into a paste than Hass, so they work well in slices, but not as well for guacamole.
I think it might be this one based on your description, they were firmer than usual when I tried to paste them