It’s also probably important to note that Samsung has publicly committed long-term to the use of Matter and Zigbee, but specifically NOT to zwave.
The newest standalone SmartThings hub, the Station, doesn’t even have a Z wave radio. Neither do the hubs that are being built into Samsung smart appliances and AV devices.
Plus, the Z wave implementation that SmartThings does support in its older standalone hubs has some significant gaps compared to the competition.
Gaps in SmartThings’ Zwave Implementation (2022)
If I were a zwave device manufacturer looking for a third-party Hub to base my rollout on, SmartThings wouldn’t even make my candidate list. 
But obviously, that’s an individual decision.