You are falling for animal industry propaganda against PETA

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.

You are misinterpreting the information here. Neither Firefox nor Ubuntu are doing anything to your root directory. The behavior described and what you are undoing is that your storage device is being made available at two locations: both at / and at the hunspell path.