How did you install them?
Are you Windows or Mac?
If Windows, copy the .abr files to this location.
C:\Users\[Your User Name]\AppData\Roaming\Adobe\Adobe Photoshop 2024\Presets\Brushes
Note: you may need to enable viewing Hidden Items in File Explorer
This is Windows 11. Windows 10 is a little bit different.
You'll need to copy the brush presets (.abr files) to the equivalent folder if you have a beta version installed.
A lot of people find the presets are missing after a major version update. If you have this issue, you'll find the presets in the previous version folders, but only one version back
If you think this messy, there is another way to do this, and is what I do.
My preset folders in all Photoshop versions have no .abr files. Instead they live in a folder in My Documents, and I place a shortcut to that folder in the Presets folders, like this
I am sure you'll know how to make the shortcut, but just in case, right click the folder — I have to click on Show more Options — and click on Make Shortcut. Copy that shortcut to the relevant locations, and it is job done.
The reasons I like this approach is that when I add brush groups they are automatically available in both the full release and beta versions, and it ensures that I don't lose the presets when updating or changing computers. I doesn't slow things down in the slightest AFAICT.
I hope this helps. It is not bomb proof however. If you create and export new brush groups they will be saved to the AppData folder, and you'll need to remember to copy them to the My Documents folder.
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