Has this been tested for multisite configs with subdomains?

I have a multisite setup with the primary domain = mydomain.com
In addition I have a subdomain that was originally setup as sub1.mydomain.com.
Later I changed sub1.mydomain.com to newdom.com.

However, some references (e.g. media files) that were originally uploaded are being referenced using:
sub1.mydomain.com/wp-content/uploads/sites/7/2016/06/xyzabc.jpg

I’d like to change these references to:
newdom.com/wp-content/uploads/sites/7/2016/06/xyzabc.jpg

Can you fix this type of problem ?
If so, how do I set the WP_HOME and WP_SITEURL constants ?

Thanks !

https://www.ads-software.com/plugins/mpress-fix-url-references/

Can we use this plugin to replace URLs in a case like this?

Example: We have a website with lots of products: apples, bananas, carrots, dinner rolls, eggs, and fish. All our product pages are currently located at the following URLs:

https://www.example.com/apples
https://www.example.com/bananas
https://www.example.com/carrots

We want to change all the URLs and their references to this:

https://www.example.com/products/apples
https://www.example.com/products/bananas
https://www.example.com/products/carrots

Can we use your plugin to do this?

Thanks in advance!

https://www.ads-software.com/extend/plugins/mpress-fix-url-references/