working for me with updated binaries (currently on windows), including deno.
using just the cli instead of ytinterface. fed it a random playlist i found and used your exact command line. it also stated music wasn’t supported but redirected seamlessly to yt itself.
it’s now 40-some tracks in and still going.
add your likes to a play queue, then use that queue as your playlist for dlp.
see also: https://old.reddit.com/r/YoutubeMusic/comments/8zu1u5/how_to_share_liked_songs/