Description of the need
D7 allowed you to enable filtering on the "List Views" page at admin/structure/views, like this:

It's not available in Backdrop.
Proposed solution
It would be nice to restore this functionality in Backdrop.
Additional information
The issue was raised in https://github.com/backdrop/backdrop-issues/issues/5895.
Forum discussion at https://forum.backdropcms.org/forum/views-administrative-page-doesnt-sho....
Draft of feature description for Press Release (1 paragraph at most)
Backdrop now includes the ability to sort and filter the administrative list of views according to the View tags of the individual Views.
Recent comments
Hi Kevin I am interested assisting you developing a theme by cloning feature from existing WordPress website. Please let me know your suitable time to discuss further...
Create a theme from existing website
I've updated the Zulip link in both places I found it. No need to post again, unless you have something new to say. We'll pull together feedback from all the sources.
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Should we post here again, what we posted over there? Or would that unnecessarily duplicate things? The link to a Zulip thread in this initial post leads to an internal one, but there's...
Backdrop CMS Core Priorities