LIghtroom 5 presets to Classic

If the presets don't appear automatically when you start LR Classic, you can import them manually using the command Presets Panel > + > Import Presets, navigating to where the .lrtemplate preset files are stored. LR will automatically convert them to the new format.

Note that the command File > Import Develop Profiles And Presets will not import and convert these older .lrtemplate presets.

IIRC- Lr5 stored Develop presets in a default folder-

Macintosh HD / Users / [your username] / Library / Application Support / Adobe / Lightroom /

When you run Lightroom-Classic (on the same system) it should automatically recognize the presets in this folder.

If you are installing to a new Mac system you would need to copy the files to the same folder on the new system.

If you stored presets 'with the catalog' then you would search for your catalog .LRCAT file and find presets next to the catalog.

https://www.lightroomqueen.com/lightroom-classic-file-locations/

Classic does have the "same adjustments"- However: the names on some of the develop sliders might have changed, but nothing major.

There was a change from .LRTEMPLATE develop presets to .XMP presets, but Lr-Classic should also identify the old presets and create the new .XMP filetype.

The Process engine in LrC has improved over time and upgrades, so many of your old presets may not produce results exactly the same as before. Creating new 'User' presets might be beneficial.