The printing of matlab in scientific papers is too thin or too thick.
You can try the export format of EMF. Before exporting, it is best to keep the FIG window of MATLAB consistent with the target size, that is, pull the window to the size you want to output, so that the deformation will be smaller. In addition, the line thickness can be set to 1. 1, 1.2, 1.3. . . .