1.4
Natural healing / recovery in D&D happens during Long and Short Rest. Regeneration is something else entirely. BG3 just needs a meaningful resting system and get rid of the healing from food items entirely. Healing potions are for combat.
Your meaningful resting system risks to turn into more rest-spamming, just short rest instead of long, without any additional way to represent the fact that some minor wounds may heal naturally just on their own. You don't have DM to control the situation here, so it's either some kind of "regeneration", either rest-spamming, either wasting potions to heal a few hp.
By the way, that's what for short rest stands in D&D from role-playing perspective:
A Short Rest is a period of downtime, at least 1 hour long, during which a character does nothing more strenuous than eating, drinking, reading, and tending to wounds.