The .rar format indicates this is likely a compressed archive containing the Windows (PC) version of the game. On Steam, the official release for this specific update occurred on . Help - Progressbar95 Wiki
Based on the official Changelog and version history, this date aligns with the immediate post-release period of , also known as the "August Update" . Version 0.95 (August 2022 Update) Highlights Progressbar95.v28.08.2022.rar
: Players gained access to a simulated internet called Progressnet. It included a functional "Browser" where you could visit parody websites, such as "Searchoo!!". such as "Searchoo!!".