28.6102294921875 is the maximum I could get. The error basically says that you can't set limit more than 30,000,000 bytes which is the number above in megabytes. It raises questions because there's option to specify size in GB, which obviously won't work at all.
TL;DR
Solution: The user discovered that the maximum file size limit they could set in a storage bucket was 28.6102294921875 MB. They found the storage limit environment variable in the documentation that confirmed this limitation. The user also noted that although there was an option to specify the size in GB, it would not work. The issue has been solved and there is no workaround mentioned.