No he didn't. The most he said is that he would "SAVE TIKTOK" (https://truthsocial.com/@realDonaldTrump/posts/1130812582422...), which can mean anything you want. If you think the ban should be repealed, then that's what he meant. If you think the ban should be upheld and TikTok should be taken over by an American company, then that's what he meant. As usual, he has also made every other possible contradictory statement on this issue.
He will absolutely 100% save TikTok. Expect to see him work closely with Xi and Putin against their common enemies during his term.
Here's another fun prediction: China will give him (personally, not the US) a huge sum of money and he will withdraw all support from Taiwan allowing China to take them over. TBD whether there's shooting involved.