=== Test-Dtc ===
You can use the Powershell module (or cmdlet) "Test-Dtc" to check if everything was configured correctly:
https://learn.microsoft.com/en-us/powershell/module/msdtc/test-dtc?view=windowsserver2022-ps&source=recommendations
=== DTCPing ===
Also, the DTCPing tool can be applied to test the correct setup. :
https://learn.microsoft.com/en-us/troubleshoot/windows-server/application-management/ms-dtc-connectivity-issues?source=recommendations
A good thing about this program is that it makes you notice to use the involved machine's names instead of IP addresses.
Here's a link to a detailed article describing how to trouble-shoot MSDTC issues using the DTCPing tool:
https://puneet-gupta.github.io/puneetgupta/2008/11/12/troubleshooting-msdtc-issues-with-the-dtcping-tool/