When you say minimise, I think of autohide taskbar.
This tutorial will show you how to enable or disable automatically hide the taskbar for your account in Windows 11. The taskbar on your desktop is located on the bottom of the screen by default in Windows 11. If you like, you can have the taskbar automatically hide in Windows 11. If you...
www.elevenforum.com
When you say smaller, I think of smaller taskbar icons. For that, at the moment, you’ll need a 3rd party app.
I believe you can do it for free with either Vivetool.
Or Windhawk, after you install Windhawk.
The customization marketplace for Windows and programs. Customize your programs with available code snippets or create your own customizations.
windhawk.net
It was mentioned back in October of 2024 that Windows would be reintroducing smaller icons for the taskbar.