Yup, nobody was offered Luka except LA (though Utah had to know about it too obviously).
Joel desn't get that deal done in any way shape or form probably and Sixers also don't have tons of picks to offer. Here's one deal that was suggested.
Mavericks receive: Tyrese Maxey, Jared McCain, Eric Gordon, three first-round picks (Clippers' in 2028, Philadelphia's in 2031, least favorable of Philadelphia's, Houston's or Oklahoma City's in 2026), one first-round swap (from Philadelphia in 2026).
76ers receive: Luka Doncic
(The article suggests that with Joel hurt and Luka hurt and Maxey gone it would have had the added benefit for the Sixers of getting them into the lottery.)