I have a fresh install of Adobe InDesign 2024 19.5.3.144 on Mac OS.

When launching InDesign 2024, it starts up, but then locks up after a few seconds with a spinning beach ball. I tried to let it sit for a long time, but it never recovers and I needed to force-quit. Resetting preferences does not help.

I experimented a bit and found that by adding the following entries to /etc/hosts I can block a few Adobe servers which then allows InDesign 2024 to launch normally and work properly.

127.0.0.1 p13n.adobe.io
127.0.0.1 crs.cr.adobe.com
127.0.0.1 lcs-cops.adobe.io

With these entries in /etc/hosts, InDesign cannot reach these services and does not 'hang' on startup.