Replacing second chain and gear cassette

On my 2017 Gepida Alboin 1000 SLX 10 the original chain and gear cassette were replaced at 4472 kilometers The specs say the original equipment was

The replacement chain and gears were better--never did get square on the make and part numbers. These lasted 7861 kilometers. Getting them changed today. They're putting on all Shimano parts, hope they're ok. They said the lowest gear on the cassette is larger but the rest of the gear sizes are the same as what I have now which has been working ok. No problems, just posting as information. Don't know what this service costs in the states. Here in Italy it's just under $150.
Thanks for sharing this information. Very informative and helpful to all of us here on the forum.