Hi,
The change did come about after an update. When i expand the menu, no option for Test send appears.

My version of Dynamics is listed below:
2022 release wave 2 enabled
App name: Marketing
Organization name: CRM - Live
Server version: 9.2.22113.00172
Client version: 1.4.5096-2211.3
Session ID: 64383038-ae25-4821-866b-8967b519087d
Time: 03/01/2023 08:22:25 GMT+0000 (Greenwich Mean Time