I used 1password for ages because I was a mac adherent and it made sense to get the nice mac password manager. I switched to bitwarden for a couple reasons that made sense for my use case, but both are great software. I might as well run down the reasoning I changed a few years ago:

• 1Password added a way to save crypto logins that integrated with one specific platform, and that platform was clearly trying to target people new to crypto. It felt a little like integrated advertising though it's not like it was a popup in the app. They haven't like, transitioned to a crypto company to my knowledge, but it left a bad taste in my mouth.
• In the past 1Password had the nicest interface on apple platforms, and this mattered. A few iOS updates ago Apple added feature where the OS managed the actual filling in of passwords. This reduced what 1Password did for me by a lot, it was basically just syncing text files for me at this point. Might as well get the cheapest option.
• Bitwarden got really good, there's no features missing that I can't do without. I can basically recreate anything I'm missing from 1p using the additional fields and file upload features. I think the only thing that's nice to have in 1p that I don't get in bitwarden is multiple vaults under the same account... actually they added that and I didn't notice lol.

I find that some people who are less technically inclined have an easier time with 1p, so I still recommend it (it's what my parents use). Also good: extremely easy to move between platforms.

That's it that's my password manager rant