A Suggestion

I’ve been looking for a free(limited) plugin for decimal in WordPress, and your plugin was exactly what I have been looking for

But
I recently tried to tweak some settings, and I discovered the limitations of floating-point arithmetic in PHP. I don’t have much knowledge in the matter, but I have talked to a more professional developer who suggested storing values as integer numbers and their decimal count along with them. This way, the calculations will be more precise, and with the current problem that your team has mentioned as well when enabling decimal quantities(decimal quantities are not supported yet in Cart/Checkout blocks.) this might be a workaround that could also help