My scant research on the touchpad situation tells me that this laptop (TUXEDO InfinityBook 14 Pro) is likely a repackaged UNIWILL IDL (https://www.uniwill.com.tw/?page_id=16918). On Linux, the touchpad is probably handled by the i2c_hid module and I think OpenBSD has sys/dev/i2c/imt.c that might handle it (NetBSD has sys/dev/i2c/ims.c, but no sys/dev/i2c/imt.c).