Let's also take BNB as an example. A market capitalisation of $86.74 Billion and ranked as the #4 coin overall. It is developed and owned by a private company, Binance. Their objective primarily is profit for their company. Yes the owners have alterior and philosophical plans, but ultimately they need to keep their company profitable. They have offered some technologies, like Binance Smart Chain, and they have their own exchange, but we cannot forget that they MUST turn a profit on their projects as an organisation, and releasing a coin like BNB is to benefit THEIR interests primarily. They can and will change things as they please, you do not want to hold something where the rules can change at any moment.
And which is why Bitcoin remains the best and only asset/cryptocurrency suitable for long term investment, whereby it's investor could have rest of mind for fund security, unlike the rest altcoins which if you are unlucky likely to fall victim to scam project and lose all your money. Because just as we just crossed the 4th halve of Bitcoin, there is a every tendency it's price likely to skyrocket higher any moment from now, which is why this is the best opportunity