there a tool to test usb sticks/sdcards
https://fightflashfraud.wordpress.com/2008/11/24/h2testw-gold-standard-in...
h2testw is a M$-Windows tool, but at the end of the article there is the linux tool
"F3" with the same tests.
sudo dnf install f3
or
sudo dnf search f3:
" f3.x86_64 : Utility to test for fake flash drives and cards"
more to read:
https://fight-flash-fraud.readthedocs.io/en/stable/
Attention:
========
take care to NOT overwrite your data !!!
I never used f3 so far, always did it with h2testw, so I can't say how and what !