Neil proposal in the comments, here, to ask this question returned me several images

• cyclocrosser spinning pedals while cleaning-and-lubricating chain, the work taking-me-ages took just a few moments.
• man with children in parking place of a grocery store freely loading a huge amount of food-and-bottles to his touring bike, his two-free-hands are one-free-hand and a lot of wasted time for me.

Neil tried to summarize the stands but he wisely acknowledge a limitation: there are probably many-many and even different subtypes of which it can be hard for a person to know, perfect question for us to solve together. Please, state the stand and then its advantages.

Neil's explanation about the stands:

A click-stand isn't attached to the bike permanently. You'd know it if you had one. Kick-stands come in a few different varieties: One legged, two-legged (and there are subtypes in there), ones that attach to the front of the chainstay, ones that attach in back, and probably even more types I'm not aware of.