This is inevitable. Use a Windows XP virtual machine (VirtualBox or Hyper-V) for designing reports. Once designed, you can still run the reports on Windows 11 using the runtime.
While it is possible to find Crystal Reports 8.5 floating around the internet, the safest path is using original media and applying the legacy compatibility settings. For modern reporting needs, migrating to .NET with Crystal Reports for Visual Studio is recommended, but for those stuck in the retro world, the old tools still do the job—if you can get them installed! crystal report 85 for visual basic 60 free download work