Yup. A lot of network admins are blocking domains like *.zip and *.mov because the majority of them are used for malicious link abuse and it isn’t worth the work to check them.
If you operate a *.zip instance: now is the time to take the hit, and start over at a proper domain. If you’re a Lemmy user at one of these TLD instances: now is the time to take the hit and move to another instance with a regular TLD.