InDesign 2025 freezes a few minutes after opening

On Windows 11 24H2, when we open up a new InDesign document (either from local drive or network drive), InDesign will freeze after about 5 minutes.  It will freeze for about 10 minutes and then start working normally again.  It then no longer freezes while we have InDesign document(s) opened.  It's as if it does something shortly after it's opened that causes the freeze and either finishes or times out then works normally again.  We have tried to re-create our preferences folder.  We have verified that our proxy server is not blocking any needed web addresses.  We have tried InDesign 20.3.1, 20.4, 20.4.1 and the newly released 20.5 with the same problem.  We have tried to chat with support, but they were not helpful and kept disconnecting our chats.  Has anyone experienced this issue?  Thank you.