Sharepoint view level permissions

Hello, I’m facing an issue in SharePoint. I have a main list where I need to create two views

one for “A” users and another for “B” users. What should change is, for example, that “A” users can only see column “A” and “B” users can only see column “B”.
And being sensitive data, they shouldn't be able see each other's columns.

Using different lists is the only viable way I currently see this working, which i don't really want since this requires a lot more of work, unless someone can suggest a better solution.

Note that currently I'm using two different pages inside the same website for user's "A" and "B".
Thank you very much.