If you are looking for the Teams' signature preview link, there are two ways to obtain it:
Step 1.
Go to the Segment tab and tap the segment that includes the signature to open it.
Step 2.
Click three dots and click Manual installation button.
Step 3.
You will be redirected to the email signature preview page. Click Copy to clipboard to manually copy the signature.
Alternatively, you can copy the URL of the page and share it with the user who needs the signature.