Minecraft Buggt. What can I do?

For example, if I want to drag items through the inventory, I have to hold down the left click. On Hypixel, for example, if I want to select Bedwars or buy something in a round, I have to drag the respective item into my inventory to click it. Does anyone know why that is?

This is not a bug, you have activated the touchscreen mode, which you can deactivate in Settings> Controls.

Somehow i can't find the touchscreen

Ah i have it!

No thing.

Was really totally desperate