Yep, that would work fine for the first line of defense. Eventually, you can expand it to copy, replicate, or drive swap the onprem backups offsite somewhere (e.g., cloud, office, or family member) if you want to protect your data from site loss (e.g., house fire).
You definitely should still check this, but even with proper indexing settings Windows is still garbage at search and has been since XP.
And this is coming from one of the only people who ever defends MS on Lemmy.