[LAU] DAW file format

[Alf Haakon Lund]

It seems to me that most DAWs on linux are 'operating on' WAV files. 
However I see there are other options, like in Ardour's 
session/properties/media tab

Except for losing the 4 GB limit on file size, are there other 
advantages of using for example broadcast rf64?

Will Ardour just change the default once I change this setting, and is 
it safe to change on a work in progress?

Regards,
Al F