1.18.11 patch seems to have fixed the issue.
Nintendo Switch, Bedrock 1.18.2 creative copy of my 1.18 world started when the update dropped. Threw 5 tridents at the front of my house 3 blocks above a solid block. Teleported 1500 blocks away and the tridents remain where thrown.
Save and quit the game in front of my house and when returning to the world after the Save all tridents were now on the ground sticking up vertical as if they fell. They didn't clip through the blocks like I've experienced in the past. Delete if redundant or possibly if there is a new bug that causes what was described.
Found two more instances where Allays have teleported above ground, leaving a cave built for them, and are at least 50 to 100 blocks from where they should be.