Can you update one, disable the heart -shaped function during the attack? My server version is 1.20.4

For example, this plug-in
https://www.spigotmc.org/resources/nomoredamageeffect.38139/
But it does not support 1.20.4

Can you explain more what feature you are talking about?

I'm not sure that is in scope for this plugin. This doesn't seem to affect combat.