I have tried whit different lazy chunk detectors and setups to try and get this to work but it has failed every time.
Has 1.18.1 broken lazy chunks? or am I just trying old broken methods?

latest design I have tried is https://www.youtube.com/watch?v=7fxZzaXu8j0

My Bad, It works.
I must have a mod that breaks this (will return when I find the mod that broke it).

Setup used:

When far away minecart stops activating the pressure plate causing piston to retract egg falls and break block underneath.
Notice how piston powered by detector rail dose not work

Could not find why I failed in the first place.
It worked with all mods listed below:

• Architectury API (Fabric)
• Cloth Config API (Fabric)
• Fabric API
• FerriteCore (Fabric)
• MaLiLib
• Roughly Enough Items Fabric/Forge (REI)
• Roughly Enough Resources
• Tweakeroo
• WorldEdit
• Better Sodium Video Settings Button
• Better Third Person
• Carpet
• Carpet Extra
• CraftPresence
• Farsight[Forge/Fabric]
• Iris Shaders
• Item Scroller
• JS Macros
• Krypton
• Litematica
• Lithium (Fabric)
• MiniHUD
• Mod Menu
• Recipe Cache
• ShulkerBoxTooltip
• Sodium
• Starlight (Fabric)

If you have problem make sure you are outside of spawn chunks/remove them using carpet command /carpet spawnChunksSize 0