While "free Steam accounts" are a common search term, they often lead to security risks
Websites promising free Steam accounts with pre-loaded games are almost always scams.
Official Giveaways: Follow trusted content creators or developers who may host verified contests or giveaways.
In the context of Garry's Mod, "extra quality" is not an official game version. Instead, it usually refers to: Pre-installed Addons : Sellers may bundle an account with a specific set of Steam Workshop addons