If I remember correctly, I believe no new features that Bubble is releasing works on legacy plans. I believe you need to be on their most up-to-date plan. I heard this in an email I wrote to Bubble a while ago.
What I mean is like the major releases, but more specifically when I asked it was about the ability to use Algolia on my app, and @JeffT, my the Customer Success Associate helping me said that it was unavailable to legacy users.
If you check it in legacy and it doesn’t offer it, perhaps it may be the same in this case?