Why can't I set clock style for always on display on samsung s22+ ?

I have found a partial answer to my own question. If "roaming clock" is enabled, then "clock style" is disabled. Disabling "roaming clock" allows "clock style" to be set. If you set the clock style and then set "roaming clock" then the style you set is ignored and the default is used. This behavior may depend on the version you are running - there is at least one tutorial on the web that seems to show "roaming clock" and "clock style" being set at the same time. (https://techwiser.com/ways-to-change-lock-screen-and-aod-clock-style-on-samsung-galaxy-phones/). This does not explain _why_ I can't set "roaming clock" and "clock style" at the same time. It also doesn't excuse a miserable user interface design that obscures the relationship between 2 features that you would not expect to be related.