For me personally, I had to stop using my airtag (a singular one), because I notice that my phone has started draining battery much quicker than it was supposed

For me personally, I had to stop using my airtag (a singular one), because I notice that my phone has started draining battery much quicker than it was supposed to, for weeks on end. I checked the battery management page, and it turns out that the airtag functionality was draining most of it (despite my airtag being always near me, pretty much). Neither software updates nor disconnecting and re-pairing the airtag from scratch helped. Once I completely disconnected the airtag, the battery issue went completely away. I realize that this might not be a common experience and that it could be just some particular quirk about how it works with my phone specifically. But I gave up after that.