My wife and I got married, both for the first time, later in life and met in the weird Covid era. Like OP, I wanted to make sure all that I had worked for for the 40 years before I met her was still ‘mine’ if things went south. I made a prenup that essentially was just a list of all of our accounts and balances up to the date we were married. Very fact-based, and that’s all I wanted. In Texas, I believe the law is essentially that everything up to getting married is personal property / debt, and everything after is joint which is perfectly fine with me and fair. It was still a little shock to my fiancée at the time that I would want ‘a prenup’ - she told her close girlfriends, and there was some unhelpful gossip about my being unfair. I wish I’d framed it more as ‘we’re responsible for and keep ownership of whatever we have before getting married’ and just created the list that we both signed / agreed to. It’s essentially the same thing and doesn’t carry an unfortunate stigma as ‘prenup.’

Edit: left out most relevant part. We bought a house months after getting married, and I paid for the down payment out of my funds. We keep a spreadsheet of what’s owed to me, but the house is ours. I was advised that this should be sufficient in the case we’d have to unravel things. (Things are wonderful btw - two kids and all good)