The phrase "Щ‚Щ… ШЁШЄЩ†ШІЩЉЩ„ ШіЩЉЩ„ Щ‡Щ€Щ„Щ€ Щ†Ш§ЩЉШЄ" translates roughly from Arabic-encoded text to "Download Hollow Knight Seal" (قم بتنزيل سيل هولو نايت).
This is not an official Hollow Knight expansion. It usually refers to a community-modified version or a specific repack (Gends) designed for mobile devices or optimized performance (hence "Pro Max").
You will often find this string in tutorials for downloading mobile ports or unofficial mods of Hollow Knight on platforms like YouTube or niche gaming forums. Potential Interpretations