On Fabulous, you can see transparent blocks like water, stained glass, etc., and particles, clouds behind semi-transparent armor stands that are not markers, but when it is a marker armor stand, you cannot see water, stained glass, and other transparent things behind it, even on Fabulous.
- Switch to Fabulous!
- Summon an invisible marker armor stand near it using
- Go into spectator mode
You can see water, etc. through the non-marker armor stand, but not through the marker armor stand.