Especially with details like fur or hair. I'm used to older games having blocky and angular (more or less depending on when they were made) models with jagged edges due to aliasing with simple transparency effects used for stuff like hair.
Modern games just look less defined up close. Is it a bunch of post-processing effects? Does my monitor have especially chunky pixels?
I think sometimes these settings are hidden under a generic "post-processing" setting. If you can't find the above see if you can turn post-processing down and see if that helps.
yeah, always check the pc gaming wiki online for a game, usually someone will document how to disable specific post process effects.