Taproot makes atomic swap possible, possible with the help of Adaptive signature.
taproot requires co-operative signing.
cooperative signing means both sides are not trying to mess with the other person.
if your not trying to mess with the other person. then you can atomic swao easily without taproot.
the thing with taproot/musig2. is that it requires the code to not allow a party to unintentionally/misleadingly 'double sign' (code malicious people can push people to download their variant software to be part of their collective group of other features needed by the group(which can be mis-used))
so taproot is not the 'solution' its again just a feature to make things easy for those that opt in and trust their new group partners to be honourable. taproot doesnt solve it for native/legacy users, and taproot is not abuse proof.
people need to really learn lessons of recent events of altnets/sidechains when it comes to the reserves/pegs and tokens and what happens and what is enforced outside of the bitcoin blockchain. dont just trust what you see as being fool proof.
taproot "could" offer the collaborative signing to allow federated coin reserve control in a group to allow a more trusted peg from bitcoin than before. but it can also allow the opposite if not reviewed/audited by good people