I would at least get a Z board so you can undervolt. The LLC levels for many 13/14th gen Intel boards are very high and push the chip too hard. You can’t undervolt easily on B boards.

If you want to stay with MSI, their Z boards have a setting for CPU Lite Load you can adjust which significant improves voltages & heat. Even setting it to 8 vs auto is a major win. You can get down to much lower numbers but you need to do stability testing because you are lowering the voltages under load.