I am a long time Wacom customer and this pisses me off too. I will certainly be trying out alternative brands in future. How about organizing an open source hackfest for alternative tablet brands? Some alternative tablet manufacturers: https://www.veikk.cn/products/ (绘客) https://www.huion.cn/ (绘王) https://www.gaomon.net/Pen_Tablet/ (高漫) https://www.ugee.com.cn/ (友基) https://www.parblo.cn/ (Parblo) http://www.penpower.com.tw/ (蒙恬; Taiwan) https://www.xp-pen.com/ (XP-Pen; Japan)