Photoshop not showing the 27.0 version.

what’s likely happening is that the update didn’t fully install or got stuck partway, so creative cloud thinks it’s updated, but photoshop is still running the older version, try closing both photoshop and the creative cloud app completely, then reopen creative cloud and click the three dots next to photoshop to choose "check for updates" or "uninstall" > "reinstall" this usually clears up any version mismatch, sometimes a quick system restart before reinstalling also helps make sure the update goes through properly.

Photoshop 2026 (ps ver 27.0) is a new and separate version from older Photoshop versions, so when installed it doesn't overwrite existing installs, but is it's own install.

See if Photoshop 2026 (ps ver 27.0) is listed on the Windows 11 Start Menu by pressing Start then click All and scroll down the list to see Adobe Photoshop 2026 which is Photoshop 27.0.