Does this mean Tor Browser will get less attention?

Not at all, we are continuing to invest on improving the usability of Tor Browser, as we have done in the last 5 years with major releases that include user experience improvements.

This collaboration has helped improve the structure, maintainability, and auditability of Tor Browser’s codebase, expanded feedback from users beyond Tor Browser’s core audience, and created a lower-risk environment to test features that may later benefit Tor Browser users.

We are also working hard on bringing feature parity to Tor Browser for Android.