How often do you 'dress' your leather straps...

[Auer]

Mink oil oversoftens the leather even after a single application. I would not recommend it save for when you first start treating hardened vintage gear.

Not using it on vintage gear, but rather on replacable camera straps of which I have 3 from Gordie made of leather. Theyre ok for light gear, for now.
Other than that, all my other straps are made of more practical materials.

 

[cliveh]

While my Leica II was being serviced, I soaked the case and strap in Neatsfoot.

 

[logan2z]

I use Hawkesmill leather straps on my cameras. Here are their recommendations for care:

https://hawkesmill.com/care-for-your-leather-camera-strap/