Seems to be another Android 11 issue. This is also related to trouble with physical keyboards using other layouts than American English. That is for example, if everything is set to German layout and the keyboard definitely works fine with other devices using older android versions, in this case special german characters will not appear. Samsung and Motorola have workarounds (=updates) for solving this. Unfortunately this forum does not allow me to post a link. Search: forums lenovo moto-g 100 wrong external keboard layout