The "Override TTL" setting in Yoga DNS app allows you to set a custom Time to Live (TTL) for DNS responses. TTL is a value in a DNS record that determines how long the record is allowed to be cached by a resolver (like your PC or router).
The range you've mentioned, Min 0 - Max 2147483647, is the broadest possible, meaning the DNS responses could have a TTL anywhere from 0 (not cached at all) to 2147483647 seconds (a very long time).
If you override TTL, you're manually controlling how long your system caches DNS responses. Be aware that setting a low TTL could increase DNS lookup times, while a high TTL might serve outdated records. Adjust according to your needs.