“All these” meaning all JWST newly observed early universe galaxies as determined by red-shift, not closer, more recent “foreground” galaxies.I predict that nearly all the stars in these galaxies will be first generation stars with very low metal content. There will be a small amount of metals detected as a product of blue giant supernovae - Blue giants have a very short lifetime, millions of years rather than billions. Younger stars like our sun contain metals from these early supernovae.
If you insist, I suggest a wager of a Starbucks or Amazon gift card of no more than $20 value. 
PS: My sister-in-law is an astronomer who studied star formation.