I this battery safe to use?

Hello, my google pixel 4a 5g had its display broken and im about to fix it soon, so recently I was bored so I opened it up to inspect it from the inside for any other damage and to clean the camera glass from the inside since it had some dirt, but after removing the back cover I found out the battery was slightly deformed from the impact, I attached some photos of the battery from the front and the back, keep in mind those photos are after I used a roller to flatten it a little and for the past year or so the battery was dented like that but I kept using the phone and cycling the battery (charge/discharge) because I still used it by mirroring its screen to my PC and I didn't face any problems with the battery, any help is appreciated!