The other question we should ask is, how many people use Tether and care about privacy? Will having USDT on TRX20 eXch be of any real value? I doubt it.
Regardless of which network, USDT has nothing to do with privacy. TRX20 is being pushed as a possibility only for reasons of lower fees. ERC20 can sometimes be quite expensive to transfer
Speaking about Tether, it is not out of place to remind that they decided to discontinue several networks.
Tether will no longer be obligated to accept redemption of USD₮ or EUR₮ on Omni, Kusama, SLP, EOS and Algorand starting on September 1, 2025.
Tether will freeze all remaining USD₮ and EUR₮ on Omni, Kusama, SLP, EOS and Algorand on September 1, 2025.
https://tether.io/news/tether-provides-an-update-on-prioritizing-community-preferences-for-blockchain-support-in-strategic-shift/