The ArcGIS Pro 3.0.1 patch is available for download from My Esri as well as through the software update in Pro (if enabled).
To get the latest fixes, please install this patch. For a list of issues addressed you can review the Release Notes for ArcGIS Pro 3.0
Note: ArcGIS Pro 3.0 must be installed prior to installing any ArcGIS Pro 3.0 patches. Patches are cumulative. When you install this patch, the issues addressed in a previously released patch are also included. It is not necessary to perform an incremental update of previous patches before installing this one. Here is additional information about Minor Releases and Patches
If you have not yet updated to 3.0, review Get Ready for ArcGIS Pro 3.0 and Migration from ArcGIS Pro 2.x to 3.0 which contain important information to consider before updating to the major release.
