Checked luggage on a RTW ticket?
 

When travelling on a RTW, if you have several connecting flights, you can check your bags to arrive at the final destination (and not have to collect your bags after each flight)? I am assuming the answer is yes as you are on a single ticket but just wanted to be sure…

In general yes.
For some international arrivals you are required to clear immigration & customs with all your checked & carry on bags. Then proceed to bag drop. (example USA & AU). So depends on the country of arrival.
Some airports have limitations on how long they will hold bags before the next flight. Like long overnight transits.

So no simple yes or no answer.

You can, but I don't and wouldn't recommend it. If your bags miss just one connection, they're going to spend the rest of the time chasing you around the world.

I have not had a lost bag for many years (tempting fate) apart from when I checked a bag in the First Wing to MAN (we had travelled back from the Galapagos and bags made it to LHR, had to collect in T3, transfer to T5 and bags were delayed by a week). Does it really make much difference?

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My personal experience before the Pandemic and when LATAM was a ow partner, I flew SCL-xLIM-xLAX-xLHR-CPT (x mean transit).
I checked bag all the way to CPT. Never had to claim bag mid trip anywhere along the way.

Similarly I've done multi leg transits many times (sometimes with so many connections they require 2 tags... I think it's max 4 connections on a single tag) and not lost or delayed a bag as a result of that alone. Very very rarely some other things have happened like aircraft downsizing or weather that caused delays, but even those have been years ago. Within the last several years the only baggage irregularities I've experienced were Priority tagged bags coming off the belt last. (and really annoys me quite badly in countries with long customs queues like NZ or Egypt when you could have easily been at the front of the queue of a 350 passenger plane / and multiple 350 passenger planes hitting immigration / customs at the same exact time).