My teammate abandoned game. Later on, red message appeared that is safe to leave so I left but match still counted in ranked calibration. Match id 23206175
Somehow 2 urns were active at the same time. Enemy team delivered first one but second urn couldn't be delivered at any spot. Later in the game it bugged out. Match id 23056123
Update: seems like MBOIT itself doesn't have impact on lagging, looks like some cache is invalidated when you update graphics settings and it fixes stuttering for some time
I usually play 2-3 games normally and then it starts freezing for ~250ms (like in console log) and as soon as I restart the game even mid match those errors don't appear anymore