The default apps that come on Windows 11, or Windows 10, seem to take up a lot more storage than you might think. Some deep digging reveals it can be more than 1.5GB of disk space in total.
Default app RSS
Mozilla has circumvented Microsoft's anti-hijacking protections in Windows 10 and Windows 11 in order to allow users a simpler one-click process to change their default browser to Firefox, à la Edge.