No need for a manager. Use a simple formula based on the company or service name. That way you can remember one base password and slightly modify it for any service. No need to copy and paste, no need to trust other companies with all of your passwords. No need for any software.

I haven’t thought about passwords in at least 5 years since I started using Apple + iCloud. Apple has native password management baked into everything. My face or thumb logs me in, whether I’m using laptop or phone. When creating accounts I just use the auto-fill and generated password.