Hi there,
Sorry that Photoshop 2021 is freezing on your computer.
Adobe provides installers for only our current apps and the previous major version of each. For more information, see Adobe software support guidelines.
If the current version of Photoshop 2021 is freezing on your computer, please share the version of Photoshop along with your computer's OS.
Does the app freezes while performing a specific task? To get started, you may checkout the steps mentioned here: https://helpx.adobe.com/photoshop/kb/photoshop-slow-lags.html
Thanks,
Akash