Ho to invetsigate on possible memory leak

Hi all. I’ve got a problem with an app, often the computer get freeze and the only thing I can do is to force a shutdown from power button. I would like to know how can I investigate about what is the cause and which was the last memory state befor the forced shutdown.
Thanks

Use System Monitor to investigate. Execute it on start up and sort its display by Memory. That’s how I found out that akonadiserver was eating my memory at a fast pace. That problem was fixed with the 20210616 release.