I wonder how often granular permissions are chosen in the first place. i.e. when someone doesn't give the automatic full yes-to-all consent, how likely are they to leave _some_ boxes unticked?
For me at least there are some things I'm fine with. Google Analytics doesn't bother me. Random ad networks and selling my data to 3rd parties does. (Yes I realize google uses analytics data for Google Ads, but I don't have as many issues with google ads as I do with J-Random Ad Network ran by some-unknown-shady-org)
And are you fine enough with them to actively go looking through all the items to see what they are? Personally I know that there are sometimes things I might be ok with, but that'd require me to read every checkbox's label - so I just uncheck them all.