The "pc" suffix indicates it is a version optimized for Windows or Linux (likely a Ren'Py or Unity build).
If you are looking for the from this specific game, it is typically hosted on platforms like Itch.io or developer Patreon pages. IsolatedPleasure-Chapter1-3-pc.zip
"Draft text" suggests these chapters are in the proofreading or narrative-development stage rather than a final release. The "pc" suffix indicates it is a version