Thanks for pointing to this.
How do I see if it is booked as a stopover or as a connecting flight?
I booked 3 "trips", but on the same booking.
Trip 1: India --> Sri Lanka --> Maldives (displayed like this)
This is definitely a connecting flight in Sri Lanka.
Trip 2: Maldives --> Sri Lanka
Trip 3: Sri Lanka --> Maldives
If there would be several days between trip 2 and 3, I'm sure the baggage is released in Sri Lanka. But in this case there are just 6 hours in between.
From which amounts of time between two flights respectively do they treat it as a connecting flight, transit, layover, stopover, different trips,...? Guess it's airline dependent.

I've read articles that even when you have 2 separate bookings from 2 different airlines, it happens that your baggage is automatically checked through to your end destination, when they have interline agreements. That surprises me a little bit.
Do they really check if you have another flight on a partner airline short after your current flight? And how long is "short"? Anyway, this is not my situation as all flights are on 1 booking.

Notes

• I could also book the "India to Maldives" flights as 2 separate trips to test this. But since I have only 1,5 hour of transfer time, I'm afraid to miss the flight to the Maldives in case I would have to recheck my baggage in Sri Lanka. Off course I could check in an empty bag
• Booking any of the flights separately costs almost the double (for each flight!) than I would pay now. Making the total over 5 times more expensive (and this is without the last flight to India).
• Generally the more time there is between flights, the more SriLankan Airlines charges for them.