It is now over three years since the issue of SBrick Plus not working with Makecode & microbit was reported and it still has not been fixed. I am using both SBrick & SBrick Plus. No problems with SBrick but SBrick Plus pairs and communicates with microbit but does not turn on motors. Also Wedo 1 sensors on Makecode with microbit using SBrick do not work. I am using the latest versions of all software including firmware on the SBricks.
Reference: https://github.com/vengit/pxt-sbrick/issues/2