https://www.reddit.com/r/dndnext/comments/cemh20/using_createdestroy_water_to_kill_someone/

https://www.reddit.com/r/DnD/comments/vqyu78/create_or_destroy_water_in_someones_lungs/

https://www.reddit.com/r/DnD/comments/cdtb5c/can_create_food_and_water_be_used_to_drown/

https://www.reddit.com/r/DnD/comments/ql764n/so_weve_all_heard_of_the_fill_their_lungs_with/

https://www.dndbeyond.com/forums/dungeons-dragons-discussion/tips-tactics/31598-flooding-somones-lungs

https://www.quora.com/Can-you-create-or-destroy-water-to-kill-someone-in-D-D

There are more. So many more. I just got tired of copying and pasting.