990 Pro offers faster read/write speeds over SN850X,
article:
https://www.tomshardware.com/reviews/best-ssds,3891.html
Also, i almost exclusively have Samsung drives in my PCs now (used to have WD HDDs, but i phased them all out). And one can't complete with Samsung reliability, durability, performance and software suite. Only downside of Samsung is price, but when you have the best - the high price is given.
Oh, Samsung drives in my systems are;
860 Evo
870 Evo
960 Evo
970 Evo Plus
980
I do have one lingering Crucial MX500 SSD as well.