Typically, a version labeled "Complete" from late 2022 includes: The original 2004 base game. Episode One : The first direct sequel (2006). Episode Two : The second story expansion (2007). Lost Coast: A high-tech "tech demo" level showcasing HDR.
The version you are looking for, , generally refers to a community-packaged "repack" (such as those from DODI or similar groups) that bundles the base game with its official expansions and the most recent updates available as of late 2022. Download Half Life 2 Complete Edition v20221118...
If you are downloading this for the best experience, be aware that the (v20th Anniversary) is now the definitive version. Everything New in Half-Life 2's 20th Anniversary Update Typically, a version labeled "Complete" from late 2022