Should be many YouTube videos on how to check different valves.
It wasn't in my home, hence for the questionnaire.
My relative was telling me I changed it already, but in the end it was another stove that was changed while the fleishig(meat) oven was never changed, tested it for 5 minutes, looked like it was running nice and strong. Let's hope that was the issue, will hear back from them over the weekend how it went. (Changed the igniter in the end.)
But yes the oven is really dirty filled with dirt and dust, gave a quick cleaning and attached new igniter.