I’m a scaleaholic!! I play scales before
anything else is played.
When learning a song I play a line or two then play the related scale with rhythm and different bowing. I practice major, minor and love pentatonics and the blues scale!!!
I also play triads G up to E and back. I have not worked as much as I should with modes but that is a goal
I warm up with scales practice G to A with different rhythm variations, in particular, I find pedal rhythm helps me get my ear if I don’t have a drone.
I always play through the scale of the tune I’m working on especially pentatonic.