I had my OGSE’s battery replaced by Apple back in January 2023. I had to sign a waiver after diagnostics were carried out and was made aware that I would NOT be provided with another OGSE free of charge if my phone was damaged. They stated that I’d have to pay $299 for a like-for-like replacement.
I went ahead with the battery replacement anyway and things worked out perfectly for me so I never had to go down that route.
If Apple are happy to provide a free OGSE, I would go with that option if I were you, OP.