VH-XXX, so what is it you are signing when you sign an MR then?
I understood it was a certification on Part 3 of the MR under 42ZE that the daily inspection had been carried out and the aircraft was serviceable.
Makes no difference who flies it after you have signed it. If it isn't airworthy then your butt is on the line. Pity a lot of flying schools don't teach this stuff.
And for the second time, the GFPT is NOT a licence. It's a test of the student's progress in general flying. It is also optional but most schools will make you do it because then they can milk a few more hours out of you. It did not "replace" the RPPL. A student pilot is a student pilot whether they are on their first solo or have passed a GFPT and have 1000 hours in command, they need nermission. abd the instructor giving that permission carries the responsibility for the flight.