I have a bit of knowledge on how it works and when its use could be a good choice, but I have only played around with it. Either way I would strongly suggest you look into Rancher and Harvester by Rancher. I’m most likely to personally use them too thanks to their help with setup and configuring security for your K3S cluster. Also look into thier Longhorn software when it comes to the storage part. I hope I could be of help!