I would discuss this with the person that helped you create the living trust.
Trusts add a layer. More layers = more complexity. I don't know or understand all the details of trusts. Worst case, trusts have more aggressive RMD rules than an inherited IRA (5 years vs 10.)
If your estate is worth ~$22 million+ (married couple) then the estate will pay some taxes (maybe state level estate tax on smaller amounts.) Else there are no taxes on an inherited Roth - the taxes have already been paid by definition of a Roth-type account (assuming meets 5-year rule.)
Yes, same 10 years to distribute funds from an inherited IRA, both Roth and Traditional. With traditional, the beneficiary will pay taxes at their rate. With Roth, no taxes (taxes paid previously at legator's rate.)