Are Minecraft Pistons usually so buggy?

I have a problem with the pistons in Minecraft e.g. If you attach a lever directly to the piston, it will drop off the piston when activated. Or even if I put 6 pistons next to each other and put a redstone block on all of them, activate them as if by magic (the pistons) and you can only change it by removing the redstone blocks. I haven't played Minecraft for a while, maybe that's what I wanted?

These are not bugs. In the new snapshot 20w13a as far as I know this is fixed with the lever, in version 1.15.2 this "bug" is still the same. The one with the pistons is a feature, the pistons are simply powered and activated.

Thank you very much you helped me a lot!

No problem.