I have done a piston soak once on a 8 hp Brigg & Stratton 4 stroke motor.

It is on a wood splitter hydraulic pump. I loan the machine to a person who ran it all day long without checking oil level every 2 hours as I instructed. Eventualy the motor stopped.

I purged out what ever was left of the black oil and filled it to level. Then the suprise was that it was burning oil like hell. I could see the blue smoke downwind at my third neighbor.

Obviously the rings were seized in their piston groves. This is and old motor, I could hardly crank it by hand. A motor that has no wear would freeze hard and would never move, possibly has a groved cylinder wall.

I removed the spark plug and sprayed PB Blaster and cranked it to move the piston. Did that may be 10 times over 2 days. When the engine started it smoked heavy for 10-15 seconds and got slowly back to normal.

I had to repeat the PB Blaster every time I use it since 5 years otherwise it does not stop burning oil after 10 seconds.

I do not have competence to indicate you what is the best treatment for your engine, but I myself would not run it long if it starts burning oil. I would go to a treatment to free the rings.