I have previously been using Photoshop Elements 11 and have used a tool which can be found under Enhance > Photomerge > Photomerge Style Match. However, I can't find this tool in Photoshop Elements 2020. Can anyone help me? I only want to match the styles of different photos, I don't actually want to merge them.
That feature has not been available for several years. PSE 12 was the last version with style match. All of the Photomerge features are found in the Guided mode, not the enhance menu. Photomerge Exposure has been added. If preferred you can keep your older version installed and it will run happily alongside PSE 2020 if supported by your operating system.