One line from the manga that I noticed was cut ... was that the reward for clearing out the mines of monsters was that MC would be permitted to take anything he wanted out of the mines ... all that iron oxide (rust) for alchemy to turn into 100% pure ingots is a huge windfall ... MC thought that deal was too one-sided in his favor. https://mangakakalot.com/chapter/kamitachi_ni_hirowareta_otoko/chapter_20

A little bit of difference between the manga and the anime again ... MC and his slimes built the building themselves over the course of a week, no help required ... and the white veneer was a big deal, as limestone coverings for buildings weren't known, only nobles used marble for the clean white look, what MC thought was a necessity for a laundry service ... the anime glossed over the white paint as if it wasn't important ... https://mangakakalot.com/chapter/kamitachi_ni_hirowareta_otoko/chapter_28

This could be based on the reboot web novel or the original (which either is the source). I've been reading the reboot novel and there's a bunch of things they don't talk about in this or shorten it. Example the rusted dirt he says what a waste = which the others hear and ask later and he shows off his ability and they talk about the 100% and reg versions he makes and the merchant gives him potions cause mc is low on Mana. It's odd since they could be already caught up with what's currently eng translated in a few episodes already.