The password managers are: KeepassDX (Far Left), KeepassXC (PC version of local), Proton Pass (Better privacy) and Bitwarden (Far Right). Please note that bitwarden does some data collection. See their privacy policy here and their privacy spy rating here.
It’s not common sense, unless you are already determined, that you have made a flaw from the beginning. Predictability is ONLY possible, if you know the way the password combinations was made, or if you have enough (at least 5-10) different passwords, from the same person, and could figure out their system - which is hard, even at that point.
Thanks for advising me to do some research. How about you point me to what you are talking about, or else I could just say, that you should go do some research that proves I’m right. See… that’s meaningless. I am smarter than you - MR. I try to demean people I talk to, because I’m the smartest…