It is true, DSLRs probably are going away, to be replaced by mirrorless cameras.
https://petapixel.com/2022/05/26/nikon-plans-to-basically-abandon-dslrs-by-2025/
Off the top of my head the major manufacturers of cameras
Canon, Nikon, Pentax, Sony, Olympus, Panasonic, Fujifilm and Leica...