I experimented with it on the newer beta versions of Minecraft Bedrock 1.16. It seems as if the floating text entity can be pushed by players and water and can be moved by pistons. Idk whether if it is the game itself or the addon that makes it happen. UwU Good addon btw :D 🧡 ...
You can remove it by using command /kill or using Barrier block & long press/right click on it. TUTORIAL USING VIDEO: note: Old video but the usage is still the same! Additional: All Minecraft Supported languages now has been added and translated!