It suggests (relatively) strong passwords, it discourages password re-use, it surfaces when you use passwords that have been found in a data breach, and it allows you to access these passwords across devices.
I have no idea about the cryptographic strength of Chromes's offerings, but the fact that it is the leading browser worldwide means that it's going to be dead-simple for most people to adopt, even those who are decidedly non-technical.
(Personally, I use Bitwarden and 1Password, but I'm a software engineer. I would not expect my elderly family members to do the same, especially because both involve installing and maintaining browser extensions that can be finicky when Chrome updates.)