You have money and no commitments. You can work remote. These are insane assets to have. Few have any of these. Virtually no one your age has all of them. Take these as your basis to do something you are uniquely advantaged to do, that interests you. Others suggested traveling, that's a great idea. Also, don't be afraid to spend your money. What are you saving it for? A lonely retirement? You won't be young and able bodied forever.
I might suggest a niche outdoor hobby. Dangerous hobbies in particular, like hang gliding or something. I've found a decent friend group tied by a strong shared interest this way. We plan trips to go do this hobby. Because it is dangerous there is a level of mutual trust and respect. As someone without a significant other or children you are well positioned to tak up such a hobby that most others could not afford or tolerate the risk for. There is adventure if you go look for it.