Funny timing! I froze some the other day; I haven't used any of the frozen yet, so I don't have feedback on the end result. I understand peeled garlic can be refrigerated (if covered in oil); but, I feel like 2020 would be the year I give my family botulism. So I froze some using 2 different methods.
First was the lazy way. I simply froze the cloves. I did some peeled and some unpeeled (for the sake of sience...and boredom). I put them in a freezer bag and removed all air, and popped them in the freezer. Apparently they peel very easily once frozen. This method supposedly takes an hour to defrost and the texture can become "squishy".
The second way was easy and I think will be favorable. I peeled the garlic and placed it in the food processor with some olive oil. (I didn't measure anything, but I had about 5-6 heads of garlic and probably about 1T-1.5T olive oil.). I pulsated it a few quick times until it was a paste like texture. I spread it out on a silicone mat and placed in the freezer just until frozen. Then I broke into smaller chunks and put in an airtight freezer bag.
I figured I'd give it a try for time saving meal prep; it can be tedious to chop/mince when I need a tiny amount.