Marlin 2.1.x added Input shaping, the amazing feature people are spending hundreds of dollars on to get (Sonic Pad), or setting up Klipper. Marlin has it now. But there is no CR6SE touchscreen firmware that supports Marlin 2.1.x not from Creality (seems like it may never come since they would rather sell Sonic Pads), not from Community (community FW is frozen), not from anywhere else.
Marlin 2.1.x added Input shaping, the amazing feature people are spending hundreds of dollars on to get (Sonic Pad), or setting up Klipper. Marlin has it now. But there is no CR6SE touchscreen firmware that supports Marlin 2.1.x not from Creality (seems like it may never come since they would rather sell Sonic Pads), not from Community (community FW is frozen), not from anywhere else.