Are all toddlers exhausting?

Im mum to 11 months old boy, hes very active and has good nature (smiles a lot, doesnt overly complain other than normal baby behaviour). Like every baby he is lots of work but I love who he is. More and more on my reddit im being pushed the posts from “toddlers” subreddit, mostly from parents saying how exhausting her toddler is. Is it true for all kids that from not difficult baby they turn into little devil and terrorise parents? I get its different problems, please dont tell me that, im just interested if most people find it personally or harder?

Im sad he will soon stop being a baby and reading posts like this makes me even more sad.