This made me decide to add homebrew equipment to my campaign: The
beerpotion bong. Need to swallow a lot of liquid in less than 6 seconds? This is for you!There's also a rare version that rests your potions on your head and adds a straw, so you don't need to use your free action to take the potion out of your bag.
Okay, chad faced joke aside (which is what I was going for there and couldn't undercut it with =P) I do prefer more simulation based ruleset which sortof demands that at least some basic rules of physics are able to be mapped between reality and the gamestate. Abstractions can exist, and explanations can be provided (like the idea of a potion only being a mouthful/shot in quantity and/or size), but strain of an increasingly divorced rulest from the actual narrative is always a problem and should be avoided, imo.
I saw somewhere a homebrew that to use a Potion for Self is Bonus Action or Action. When used a Bonus Action you roll as normal,but as an action you heal the full amount.
When giving to others it's still the same rules.
