Or extract the eSIM / figure out a way to use it for free internet like some did with Amazon Kindle SIMs.

And then you'll ruin your warrant.

Warranty doesn't mean much to me. I'm an outlier who enjoys repairing their own devices. I recently repaired a week old laptop that arrived faulty (trackpad was messed up) instead of mailing it back.

I'd only cut the antennas in a last case scenario. It's more likely they'd have a connector or I'd try to de-solder them first.