WowAce

Hello, playing on classic, the incoming heals status is working only for myself, it does not show other's incoming heals.

It is my understanding that that grid2 implements the LibClassicHealComm-1.0, but isn't this solution only viable if every healer also runs this library?

Is there a way to show incoming heals regardless of whether or not the other healers have a specific addon library?

Also LibClassicHealComm-1.0 got today.

Is there a way to show incoming heals regardless of whether or not the other healers have a specific addon library?

No,  classic game does not provide the heals data like retail, blizzard decided to remove that api.

All healers must install libclassichealcomm library or any addon that includes the library, like Grid2, LunaUnitFrames, ElvUI, etc. Libclassichealcomm library is already included in a lot of addons.