MYSQL How to get unique values from two tables mysql

I'm trying to get unique Value from two tables but the problem is the data in 'd.feedback' is displaying all of the data in the column feedback from daily_report table.

This is the code that I use. So what do you think I should do? Distinct fullname and feedback? or is there another alternative?

SET @row := 0;
SELECT DISTINCT CONCAT(@row := @row + 1,' ',ui.firstname) as 'Regular Users', d.feedback
FROM daily_report d INNER JOIN userinfo ui ON d.id = ui.userid

Here is the First Table

| userid | firstname |
| --     | ----------|
| 1      | Christian |
| 2      | Levi      |
| 3      | Brian     |

Here is the Second Table

| id | feedback  | userid |
| -- | ----------|--------|
| 1  | Thanks    |    1   |
| 2  | Arigato   |    1   |
| 3  | Sure      |    2   |
| 4  | Thank you |    2   |

Desired output

Read more here: https://stackoverflow.com/questions/66333609/mysql-how-to-get-unique-values-from-two-tables-mysql