It's a pretty common issue, it's the valve stems. Same thing on my IS38 GTI.
I don't really have these symptoms. My car doesn't smoke when it idles or in city traffic and it doesn't smoke when i accelerate.
"The seal has also cooled during non operation; which causes it to contract and leave a small gap. When the engine first starts up; residual oil gets sucked down; through the bad seal and into the combustion chamber. A large cloud of blue-white
smoke will be seen, exiting the tailpipe just after start-up. But, the burning smoke will disappear, during cruising or highway speed.
Idle and Stop and Go Driving
Bad valve stem seals, will show themselves during; prolonged idling at stop signs or stop lights, in congested city conditions. When the vehicle sits at idle for prolonged periods; high levels of vacuum at the intake manifold result. The high vacuum, attracts oil in the heads, to congregate around the valve stems.
Upon acceleration, the oil gets sucked, past the seal and down through the valve guide. Huge clouds of
blue-white smoke exit the tailpipe, after each acceleration from a stop. But, the burning smoke will disappear, during cruising or highway speed."
https://dannysengineportal.com/valv...valve-lubrication-as-well-as-oil-consumption/