No, actually Trump did not already do this. After four years, Donald Trump issued regulations increasing the share of a product’s components that must be produced domestically to qualify as U.S.-made just one day before he left office. Biden's EO requires government contracts to purchase fully American made, not just a share of it American made, if it is available.

The EO also makes government purchasing transparent by creating a website where American businesses can see what contracts are being awarded to foreign vendors, allowing them to alert the government to the availability of a domestic alternative

Yes, this will increase some contract costs but it fully supports American businesses and jobs now. Nothing wrong with that.