Do Turntables sound better with time?

Of course. Motor bearings and things relax and bed-in with time. The same way you can't use launch control in a Dodge Demon until you've done 500 miles. 

@mijostyn my turntable bearing needs 20 minutes warm up every session.

In most cases I do not believe components "Break In." Transducers might but not electronics, turntables or tonearms

@mijostyn

Bearing uses a proprietary grease so, yeah, it needs thinning or spreading. Manufacturer’s instruction. Cartridge is Decca. No rubber.