Afaik there are actually 4 flash memory manufacturers in the World, when you by an SSD the chips were manufactured by one of these companies:
- Flash Forward (Owned by or related to: Kioxia, Sandisk, WD, Dell, Seagate, Kingston)
- Micron (Crucial)
- Samsung
- SK Hynix
https://en.wikipedia.org/wiki/List_of_solid-state_drive_manufacturers
Yes, that’s true. Illusion of choice, anti monopoly laws are working as expected.