When I use the 'Find Cases' report (from the Case menu), and I select [Delete Cases] it does nothing. And it looks de different. Like this:
CiviCRM version 5.34.alpha1 on Drupal:
And besides that, the search part looked funny too:
The search from and the to fields are visible.
In the JavaScript console I see the following message in red:
select2.min.js?qmiq9r:75 Uncaught query function not defined for Select2 custom_13_from