The new UI/UX of collections and environments is worse

It used to be that collections and environments had their own panes. Meaning they got the full height of their panes. Now the enviroments section is below the collection section and I have to keep expanding, collapsing and adjusting their heights to find the rest of the entries in both.

Can someone convince me what was the rationale behind this new ux/ui? I find it be worse.
Is there a way to go back to the old way?