Also see:
Would creating a separate, unencrypted rpool/lxd.plain dataset and initialising an unencrypted Incus/LXD storage pool work for your use case, assuming one of your rpool or rpool/lxd datasets is an encryptionroot?
Also see:
Would creating a separate, unencrypted rpool/lxd.plain dataset and initialising an unencrypted Incus/LXD storage pool work for your use case, assuming one of your rpool or rpool/lxd datasets is an encryptionroot?