Yeah, nothing like that exists too similarly in 5e, probably the closest being the 3rd level feature for the Purple Dragon Knight, which lets your Second Wind also heal nearby allies with a encouraging shout. So you're solidly in homebrew territory, with the biggest thing to watch for is how often you can heal people. Just tie it to something you can't spam and it should be fine; like the healer feat only working on each specific person once per rest.

Lots of ways to make it work in pathfinder 2e tbh, but the game has a specific focus where anyone that has any focus on the medical skill will have enough healing to make sure every is pretty much always full health outside of combat, no magic needed, and some way to more limitedly heal in combat non-magically. Along with a few classes getting free elixers everyday, including the Herbalist being allowed to use nature instead of crafting/medicine, it shouldn't be too hard to get any class ranged non-magical healing ('multiclassing' is pretty easy in PF2e, you just swap your own classes level up abilities for anothers, with some level restrictions).