How to allow expanding records, but not make them editable?

If you want to make the linked record clickable:

1. Enable the option to Allow users to expand or edit linked records.

2. Go to the child form settings (not the parent field) and make all fields read-only.

Related

• How does read-only work for linked records fields?

• How to choose which fields show up on the linked records?

• What does read-only mean?