Conferencing Participant Numbers and Limitations

Hi there, I found a post on user numbers attending a live session but my question here is a bit different. In the event we keep the default number of participants which is 75 and use one Jitsi Meet instance (framework) how many parallel sessions - individual rooms can Jitsi support? Could it be unlimited or there is an upper limit? For instance could we have 100 rooms of 75 people each running at the same time? The likelihood of this happening is extremely low but we want to address a case we were asked.