There are various solutions. I have not published a video on how to do it.
It is a little more advanced but the steps are:
Have a Master sheet within a separate Spreadsheet.
Use Importrange or some other formula to bring the data from each quiz into a separate sheet in the same spreadsheet as the master.
Use a Vlookup to match the grade to a particular student.
I have seen several other ways of doing this. You can link the Flubaroo quiz to the master in other methods.
Flubaroo doesn't work well when there are multiple quizzes going to a single spreadsheet.
The important thing is that you are willing to learn and understand the steps. Once you do that, it will be a lot easier.
I must admit that I'm a retired IT professional and have been learning about Google spreadsheets and formulas. I constantly learn a new way of using the tools Google provides.
I'll make the same offer again. If you share a couple of quizzes and a master list, I can put together