The glass door handle design is generally very strong and will not slip or be removed. Today, the quality of glass doors on the market is very high, and there are very few cases of glass doors being removed.
However, if this happens, the glass door handle usually has holes for fixing the handle. These designs are used to fix the handle. If the glass door handle is loose or dropped, just change the glass door handle to the original one. The location is fixed. But if you really can't install it yourself, it's better to ask a master to help.