The mods are compatible, the values in each just don't align.
It is unclear if the values in QualityPlus are the values the creator wants or they just followed the logic of Wubes Quality implementation. For now, i want to wait for the situation to clarify.
For reference, this is the code line in QualityPlus that doesn't align with my QualityBioLab:
science_pack_drain_multiplier = 91/100,
Where in my mod the value would be 50/100 for Legendary or 40/100 for LegendaryPlus.