This is my personal view and not LoneDevs, but I can see a few issues with this idea:
How would one interact with the doors, should they open and close? In 1.20.6 could this (probably) be done with interaction entities, but that would require to know the door's current position which would be easier said than done.
If collision is desired, this would basically be impossible as there is no item that would have the same hitboxes as a door has.
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Discord tag (optional)
Mathildeuh
Describe the solution you'd like
Add a way to custom doors
Is your feature request related to a problem?
No
Describe alternatives you've considered
No
Additional context
No response