At each new update, I'm waiting for the return of the search bar.
But still nothing...
Just to follow up on what @Guido said, we do not know how long this test will be running for, however for now it's not being released as an official feature.
We appreciate your feedback on this, and we'll make sure to pass it on to the relevant team so that it can be taken into consideration going forward.
Thanks! Take care :)