Nope, main reason is lack of trust.

" but such is the direction being taken by Mozilla that I am not anxious to sit idly by and constantly keep an eye out for new hidden privacy and AI features to turn off with obscure checkboxes. "

But here I can attest at least, that nowdays firefox after a fresh install shows a banner saying they collect data by default. And when you click that, you get directly to the options to turn it off. It is just, that I also don't trust that with those toggles now everything is switched off, or if there is a hidden other toggle or there will be one shipped with the next update.