Yeah, I had a lot of wakeup events a couple of weeks ago, after a firmware update and an app update. No matter how long I went without checking the app, when I did, the last active was always 10 minutes, and I was seeing 2-3% a day (vs. my old idle drain of 1% every 3-4 days, basically nothing).
There's 3 data collection options, I toggled all those off and it really improved, back to about 1% every 2 days or so, then at some update, it was back to my original/low rate (4 or more days just to go down 1%). I wanted to get the better traffic data and you have to enable that data contribution option, but it didn't affect my drain, still terrific for the last few weeks. Then recently, I've started getting a touch more, nothing as major as that drain from a few weeks ago, like 1% every 2-3 days. I think maybe it's a little more network chatter again. There's a good discussion about this in the Tessie support thread on TMC (it's not Tessie related, but that dev has good insight into the car/app/API workings).
For reference I'm currently on: 2022.28.2 for the car, and 14.3.3 for the iOS App.