Swap from stand to VESA mount

I've aimed a few people to go to the local Apple Store or Apple authorized service Provider as they have access to the part's which are only available through them.

Here's the note: Set up and use Apple Studio Display which makes note of the offer:

Adjust the stand

Your Studio Display comes with a built-in stand. Depending on your stand, you can adjust the tilt or tilt and height of your display.

If your Studio Display comes with a VESA mount adapter, you can mount it in landscape or portrait and macOS automatically adjusts window and display orientation.

If you prefer a different option after purchase, your Studio Display’s stand or VESA mount adapter can be changed at an Apple Store, Apple Authorized Service Provider, or Independent Repair Provider, subject to a parts and service fee.

So far the display is not listed in the Self Repair offerings: Apple Self Service Repair