In the past, TB gave users an edge over those who did not use it. Now that YouTube has become a HUMAN Index, and is no longer a TEXT SEO index, TB does not really offer you very much unless you go for the top-tier LEGEND subscription, where it offers my advanced tools such as A/B Testing. Even then, it is not really going to do a whole lot as far as giving you an edge.
Where TB helps is just making it easier and quicker. Let's face it, Uploading a video to YouTube has become a laborious effort, with five pages of data to fill out. On TikTok and Instagram, it is simple and fast to upload, but on YT, it is a lot of work. TB helps streamline the upload process, making it less of a burden.
The bottom line is, TEXT SEO is no longer the tool that will help you win the race. However, if you do not do good SEO on TY, you will not even be in the race at all. Good SEO just helps you have a chance, because without it, you have none. So, while TB is not gonna help you win, without it, you are almost sure to lose.