For Lenovo, install Win10 from a USB, install Lenovo Vantage, hit update. For Dell, install Win10 from a USB, install Dell Command Update, hit update.
Manuallyneeding to find and install drivers stopped being a thing after Win10 1709, which was 6 years ago at this point. Win10 will almost always get you fully updated drivers if you just keep hitting Windows Update on a fresh install.