I've disabled Bixby. I've heard Bixby won't be around for long. Unlike weight management that got killed off for no reason in the health app. It seems that Samsung is on their way to kill a lot of different services and features. Rumor is out that Bixby will be terminated. Samsung has 21% of the Android market and only few people use Bixby. I haven't seen any vamped up versions lately so I believe they will abandon it as Google Assistant is on 100% of Android devices.
Some people who invested in Samsung Eco System will feel angry, but Samsung seems to do things half- heartedly nowadays.
Just disable it and pretend it never existed.