Is there a password store for tech support?

Question

Passwords

We are engaged in remote technical support for clients on our software product. For each of them, a bunch of passwords, notes and information related specifically to accounts and security has accumulated.
There was a question in safe storage of this infa.
Now it looks like ordinary txt with the client's name stored in our shared folder, technical support opens them as needed and adds information to them, for example, if the password was changed somewhere.
I understand that here already one of the readers had a heart attack from all this disgrace, but I won’t tell the whole background and how it happened in general, let’s imagine that everything else except this is in order :)
Recommend some service for secure storage of passwords, as well as the ability to add comments and provide them to a certain circle of people (our tp).
Ideally, you can generate new passwords in the same place and integrate them into some CRM

Answer 1

KeePass is at your service.
True, this is not for CRM, but there is a client for all conceivable platforms.

Answer 2

Desktop Remote Control and IT Administration Software from SolarWinds, formerly dameware. https://www.dameware.com/
remote desktop manager - an application with a database. Stores links to sessions, a lot of options: RDP, SSH, VMWARE, WEB
Passwords can be set explicitly or for a group with inheritance.
https://remotedesktopmanager.com
Another option is SecureCRT
https://www.vandyke.com/products/securecrt/