It's just yet more bloatware by Samsung, the worst bloatware company ever.
Of course you can uninstall it.
1 install android studio (free)
2 install ADB (Android debug bridge)
3 use ADB Shell to enter command prompt on the device and uninstall all the crapware you don't want, like Bixby and Galaxystore and all the other Samsung nonsense.
Worst that may happen is you won't have a contacts app anymore and will need to download a new one.