Most, but not all. The Revit 2022.1 Update (released mid-2021) was a cumulative update. It included all the hotfixes released before its build date. However, hotfixes released after Revit 2022.1 (such as the point cloud fix and the linked file reference fix) are not included in the initial 2022.1 installer.
on how to verify which hotfix version your current Revit 2022 installation is running? autodesk revit 2022 hotfix
The primary driver for this hotfix was a malicious IFC file vulnerability . An attacker could craft a specially designed Industry Foundation Classes (IFC) file that, when opened in Revit 2022, would cause a write-what-where condition . In practical terms, this could lead to arbitrary code execution—meaning an attacker could potentially take control of the user’s system. The hotfix patched this without altering existing IFC workflows. Most, but not all