Putin is now blocking grains leaving Ukraine again (One of the biggest grain producers in the world).
This will create a food supply shortage pushing the food price up- like energy.
The poorest countries will be impacted the most- who's diet is mostly grain based. Grain is the cheapest food to produce.
By creating global instability and economic havoc, it will influence politics within countries.
Putin is trying to do is turn the West against each other by using economic conditions to force political change, and other countries against the West.
It may also push more countries against the West.
(Some stupid people believe the rhetoric of Putin that the West is the aggressor - e.g. Beeno and DumbMike).
This will go on for years unless someone takes Putin out. Either internally in Russia or externally. What a conspiracy that would be, if it was not clear who killed Putin.