Are Photoshop Elements 2020 and Premiere Elements 2020 compatible with macOS 10.15 Catalina?
No, legacy/perpetual versions of Photoshop were not designed or tested to work on macOS 10.15 (Catalina). They are not supported in any way for use on macOS Catalina. Adobe does not recommend that customers using old versions of Photoshop upgrade to macOS Catalina. Most older Adobe apps were created using 32-bit architecture and do not work in Catalina. We have no plans to update apps that we no longer support or develop. The following table lists some common 32-bit Adobe apps that are not compatible with Catalina. (It is not a comprehensive list of all older 32-bit Adobe apps.). I'm running Mac OS Catalina with the latest photoshop 22.4.1. For the last month I could not figure out why ounce I closed photoshop it would not re open. Even after re installing all of adobe. I would have to restart the machine to open Photoshop. I used your advice to remove the graphics processor off of Camera Raw.
In this tutorial I am going to show you, how you can open the Photoshop CS6 in Mac Catalina. The issue with Catalina is that it does no longer support 64-bit. I'm having many issues with Photoshop CC 21.1.0 on MacOS Catalina. My Macbook is a 2017 13 inch model, that shouldnt happen. I cannot move canvas, set photoshop to full screen without it crashes. If I got success moving canvas, I need to zoom in or zoom out to my changes effect it.
Photoshop Elements 2020 and Premiere Elements 2020 work with macOS 10.15 (Catalina) but have these known compatibility issues. You may want to remain on your current version of macOS until these issues have been resolved.
If you encounter issues that are not documented here, reach out to Customer Care by clicking this link. In the chat pod, once you've signed in, type the issue that you're facing - as shown below.
If you have further queries even after contacting the chat support, write an email to Grp-ElementsSupport@adobe.com with the subject line “Catalina compatibility” issue.
Are older versions of Photoshop Elements and Premiere Elements (versions 2019 or earlier) compatible with macOS Catalina?
Older versions of Photoshop Elements and Premiere Elements contain some 32bit components which were not designed to work on macOS 10.15 Catalina. Older Elements versions were released prior to the Catalina OS release, which was released in October 2019.
Adobe recommends that customers using older versions of Photoshop Elements or Premiere Elements (versions 2019 or earlier) DO NOT upgrade to macOS 10.15 Catalina.
If you have installed the Elements products and have not upgraded to macOS 10.15 Catalina, the Elements products will function normally.
If you have installed the Elements products and have upgraded to macOS 10.15 Catalina, reach out to the Customer Care chat support by clicking this link. If you have any further queries even after contacting the chat support, write an email to Grp-ElementsSupport@adobe.com with the subject line “Catalina compatibility with Elements version <version number>”.
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Which Elements versions are compatible with macOS Catalina?
Adobe Photoshop Elements 2020, Adobe Photoshop Elements 2021, Adobe Premiere Elements 2020, and Adobe Premiere Elements 2021 work with macOS 10.15 (Catalina) but have these known compatibility issues.
If you encounter issues that are not documented here, reach out to Customer Care by clicking this link. In the chat pod, once you've signed in, type the issue that you're facing - as shown below.
If you have further queries even after contacting the chat support, write an email to Grp-ElementsSupport@adobe.com with the subject line “Catalina compatibility” issue.
Known compatibility issues with Photoshop Elements
Adobe has discovered the compatibility issues listed below with running Photoshop Elements 2020 and Photoshop Elements 2021 with macOS 10.15 (Catalina).
Checking 'As a copy' in File > Save dialog does not append “copy” to the file name.
Adobe Photoshop Mac Catalina Free
Manually edit the name and add “copy”, or change the name to something unique.
Note:We are working with Apple to address this issue.
Known compatibility issues with Elements Organizer
Adobe has discovered the compatibility issues listed below with running Elements Organizer 2020 and Elements Organizer 2021 with macOS 10.15 (Catalina).

Cmd+A does not work when selecting media in the Import dialog
Any system dialog, wherein you can select media, does not allow you to select all media by pressing cmd+A.
Navigate to the parent folder and click Get Media. This automatically imports all media in the parent folder.

Note: We are working with Apple to address this issue.
“Save in version Set with Original” does not append “_edited-1” to the filename in Save dialog
Adobe Photoshop 7.0
Manually edit the filename and add “edited_1” or change the name to something unique.
Note:
Adobe Photoshop Cs6 Update For Mac Catalina
We are working with Apple to address the issue.