How is content comparison actually implemented?

[dutchmerchant]

Does the content comparison use hashes, something like SHA256 or MD5, or does it do an actual bit by bit comparison?

Was wondering, and if hashes are used, then can you configure which hashing algorithm to use. Blake3, for example, tends to be much faster when compared to something like SHA256 or SHA512.

Thank you

[Plerry]

Asked and answered before:
viewtopic.php?t=6709&p=22256#p22256

[dutchmerchant]

Oops, apologies.