@tvataire welcome to the forum.
Previous posts on this forum have revealed that the installers, except for the AppImage, are created using code-signing certificates. If the installer file gets modified due to a network failure or disk problem the install will fail with an error.
I tested this a few years ago by changing just 4 bits (a "nibble" or half a byte) in the entire Windows installer file. The installer threw an error showing:
As the AppImage lacks this a sha512 checksum is provided, as @personalizedrefriger mentioned above.