It is backed up alongwith everything else, all my data, under a normal 3-2-1 idea, but 5-3-1.

Each of the copies on separate media inc my main PC is also versioned. I keep 12 hourly versions, 7 daily versions, 4 weekly versions, 12 monthly versions, and then per-year versions going way back. This helps protect against corruption, like I accidentally deleted an keepassxc entry without noticing right away or w/e.