Here's an article to read about the history in Colorado, one of the early states to implement it: https://www.coloradoan.com/story/news/2020/10/01/colorado-mail-in-ballot-absentee-voting-how-state-perfected-system/3572176001/

The signatures are checked in an initial step and then the ballots are removed from the signed envelope and grouped with other ballots before being counted - it's about as anonymous as in person voting.

Ballots aren't signed, but the envelopes the ballots are in are.

I made a small feature request one time and the dev was responsive and put it in the next update! it was lovely

There is a state law in Texas and many other states.

It's people who have 100k of total property, not annual salary

This is just not true. Regenerative braking is much more efficient than that.

Unfortunately, you'll probably have a hard time finding a new Bolt at this point. They've just stopped making them and dealerships haven't really been able to keep any in stock for months in my neck of the woods. Apparently they will eventually come back but the timeline hasn't been announced so probably several years.