>But we're not talking about Firefox's update mechanism here, we're talking about Librewolf's.

Doesn't matter. I don't inherently trust any organization.

>They are already the custodians of custom settings and making the choice for you, so it doesn't seem like a valid comparison here.

I can make the choice to install software. I should be able to make the choice to upgrade it as I choose as well.

If I buy a chair from Crate+Barrel, I have given them the choice of designing and manufacturing that chair and all the decisions that went into it. But I do not give Crate+Barrel the choice of sneaking into my house and swapping it with some newer version of the chair that 51% of the population liked slightly better after 5 minutes of testing or that they think will make them more money somehow.