What is this 'Internet Browser' I see in Default apps by file type in Windows Settings? How to open .URL files? It is also called the Internet Shortcut (.url).

VirusTotal scans files & web links for malware. VirusTotal Browser extensions for Firefox, Chrome, Edge let you scan files before you download them.

Why right-clicking a file has the file browser while the Settings app doesn't is beyond me. However, because shortcuts are special, you don't get the "open with" context menu on .lnk and .url files.

A Phemedrone information-stealing malware campaign exploits a Microsoft Defender SmartScreen vulnerability (CVE-2023-36025) to bypass Windows security prompts when opening URL files.