Well if wrote:
You can translate yourselves what the rumours are. A lot of people are naturally very skeptical there is any truth to it.
There are no easily accessible substantiated rumours on Norwegian Internet.
I do not believe any of the more serious rumours against Gjert, if there were any truth to those he would be persona non grata and booked for a court date, he would not be coaching Nordås .
I believe the simpler explanation that Gjert couldn’t relate to his boys as the grown men they are, couldn’t treat them as adults. There is this scene in Team Ingebrigsten that has always stuck with me where Filip tries to start a small dialogue about his training plan and Gjert just shouts him down like his son is a totally worthless nobody. Second and related issue must have been Gjerts incessant neuroticism. Gjert is always super nervous, not able to watch his boys competing, and obsessing about eating and girlfriends. One cannot at once claim to be an absolute authoritative figure concerning every part of the athletes training and lives and at the same time be so nervous and insecure and easily triggered.