Get image from post in other custom post type

Hello!
I´m making an event listing with custom post type = “events”
I also have a custom post type = “artists”

In “events” I have a ACF = “Artist” where the custom field type is “Relationship”. With this I can link an artist to an event.

The output from the “Relationship” artist field is the post_id number from the chosen “artist” post.

In the loop for “events” I would like to add the Name and the thumbnail from the “artist”
This should all be shown on a page, not on a single post.

How can I do that?
Have used 5hours trying everything, but ends up with nothing. Any help will be appreciated a lot.