That’s just the off button. But you can’t remove it because they tied it to explorer as a dependency. Off or not, explorer doesn’t work with out recall.
Turning it off is a good step 1, but what’s stopping some malicious software, such as every windows update, from turning it back on and selling our data for profit.
Try out Privacy.com for online shopping. Also use gift cards where possible.
For physical, cash is king, followed by gift cards. Visa prepaid cards are a solid choice, but not really practical.
Failing that, I’m not sure you can find a private card, not that I’ve looked.