Viability of using a RCE or JTAG to get root on a US market S22 ultra?

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What's the viability of using a RCE or JTAG to get root on a US market S22 ultra? I have stubbornness issues and once this phone stops getting security updates, I want to root it so that I can keep it going. Why? Mostly spite, partially because I paid good money for it, a little bit because I wonder just how long I could keep it running.