No. it only takes 10-30 MB of ram in idle mode anyway, It's better to not obsess about it. Windows update can break many things but haven't heard about windows update breaking office installation.
YAOCTRU generates download links, to download the setup files to your harddrive or a cmd that automates it. YAOCTRI configurates and installs it.
Such non KMS product can be activated by installing corresponding KMS product licences. KMS_VL_ALL does it by default, in case of Home Student 2019, Office 2019 Standard licenses will be installed.
This thread was referenced. Many tools are available. None have descriptions. Does one do conversions? TIA
@GezoeSloog made .svf files to do the office 2019 pro plus ISO files conversion to other products. You can find it in his signature. Office C2R version contains all products and channels in it files, but setup files decides which product can be installed. You can use YAOCTRI to install your desired product from any Office C2R files/iso. YAOCTRU can be used to download latest office C2R files.