They can give me helpful advise on use but cannot restrict me in my own decision making.
On that point, the strata committee can make reasonable rules about the behaviour of residents, including how and when they use facilities. You don’t have the freedom to do exactly as you please and this is a principle that we all accept when we move into strata. But the key word is “reasonable” and I think it’s hard to argue that it’s reasonable to lock a swimming pool at 5.30 pm.