Zorin is GNOME based, you should have disks app installed. Open it, find the drive and select it (whether you have sata, usb, nvme) . on the hamburger menu choose the benchmark tool, then try the SMART tool. You will get an idea of the performance and if any smart flags got triggered.
SMART was established for HDD originally but adopted for SSD later. Some values may not be totally relevant these days…but it is the way the drive records errors, temperature, etc compared to a manufacturer determined threshold. The idea is drive would report to OS that it may be failing before a failure happens.
Hoepfully you just happened upon a seller looking to get rid of old components and not a scam.
There is a Linux app like Crystal Disk Mark, called KDiskmark that you can also run for some performance testing. Ifyou’ve connected the ssd to the data/msata interface (rather than using wxtwrnal USB2 adapter), and you get super terrible performance compared to online specs then it could be abused.