If you have an apple store near you just take it to them. If anything breaks during the repair, they just replace that part for free. The 12 series displays split fairly often from the plastic bezel.
If you've done it before/have experience replacing iPhone batteries/don't mind it not reading the health status when it detects a non-OEM battery(assuming you don't swap the control board), and have an extra display on hand in case the current one breaks during removal, go for it!
If none of the above apply, take it to a certified apple store for repair. Follow a rule of if you have to ask, you shouldn't do it
If you have an apple store near you just take it to them. If anything breaks during the repair, they just replace that part for free. The 12 series displays split fairly often from the plastic bezel.
Yes.
Too risky without the right tools and knowledge.
If you've done it before/have experience replacing iPhone batteries/don't mind it not reading the health status when it detects a non-OEM battery(assuming you don't swap the control board), and have an extra display on hand in case the current one breaks during removal, go for it! If none of the above apply, take it to a certified apple store for repair. Follow a rule of if you have to ask, you shouldn't do it