First off, there is going to be a ton of bro-science on this topic but in general, from a chemistry and biology perspective, never mix chelated salts with a living soil web. You can dig into the organic chemistry for why with researching such topics as chirality. In summary, a lot of inorganic salts are made to be off-handed with respect to orientation of our natural biology/chemistry/physics, which is nice because it forces the plants to grab it but at the same time essentially makes it incompatible with microbial life and such. You can assume that an off-handed chelated salt will kill your microbial life every time. There is nothing more ironic than watching someone going off YouTube advice with some top-shelf living soil, microbial boosters, organic ingredients, and a non-organic off-handed chelated salt to make it all worthless.
For your nutrients they are chelated. What is the chirality (right or left handed molecules) of each individual component on the guaranteed analysis spec sheet? Are there folks online that use your nutrients with 'soil'? Yes. Does that mean it is offhanded? No. Will they tell you if anything is offhanded? Likely no, that will reveal their sourcing and 99% of the sauce for these companies is their source unless its a white label bag of dry salts. Technically they can be used in soil, just like you technically could take your sourdough starter and irradiate it...technically you could. I just wouldn't worry about microbial life if you are already feeding the plant food that makes microbial life redundant.
If you don't want to worry about questions like that, I'd go with a nice inert medium mixture like coco perlite (I prefer either 50:50 or 70coco:30). Always buy prewashed coco from your trusted source. Same with the perlite. Washing coco takes forever and requires buffered water. Perlite dust is bad for lungs.