As long as you were issued a license key you can add it and activate via the phone activation - first remove the other one from your account through the Microsoft Account Site...
Typically these would be B2B purchases...usually something that sells to Business Customers and sale Enterprise Software, in the US places like CDW, SoftwareOne, SHI, etc.
Cool...that is the information I needed
Click on the start button and click on the Gear Icon -
That opens PC Settings....now click Update and Security
Now run Windows Update
Install any update and restart as needed...
They have versions with Pro, they are $100 USD more expensive and are sold through the Business Store.
Buy Surface Pro 6 for Business - Microsoft Store
Can you give us more details on the situation? Are these videos consumed via a browser or app ? Are you still using Windows 10 S Mode?
Without additional info, are you fully updated? These playback errors are typically caused by HDCP compatibility
Most people I know follow one of these...
How to enable smooth scrolling in Google Chrome for your Surface and Surface Book
I use a Chromium based browser Vivaldi as my backup for Edge...
Are you a MS Partner? if so here: Modern Workplace Learning Maps
If not here: Enterprise Mobility + Security Documentation and Microsoft 365 Documentation
If you want a complete turn key solution Microsoft will do it all for you with their Microsoft Managed Desktop Service -
Is Microsoft Managed Desktop right for you
It's a monthly subscription that includes M365 E5 and the IT Services for a monthly fee...
In the task tray by the clock there should be a pen icon - click that
Another option is the legacy Snipping Tool also included in Windows but it's days are numbered as it is deprecated for the above
Updates are managed via EMS (Microsoft Enterprise Mobility and Security)...
EMS Include:
Intune (Mobile Device and Mobile Application Management)
Azure Active Directory (Identity and Access Control)
Azure Information Protection (Intellectual Property Protection and Compliance Tool)
Advanced...