Panasonic Lumix DC-TZ96D - Black/Grey + Panasonic Leica DC Vario-Elmar 24-720mm f/3.3-6.4 ASPH

I'm still in the early stages of learning and don't yet have much experience in terms of handling and the quality of the photos/videos. So far, however, everything makes a very good impression. Especially the image stabilisation up to the maximum zoom. The possibilities offered by this small, lightweight camera are impressive. Absolutely comparable with expensive system cameras. The menu navigation could be even better, it is sometimes misleading. One more question about the warranty: A label with the serial number on the original box shows the date 20/11/2024. Presumably the date of purchase of the first buyer. After that, the camera would still have a factory warranty of approx. 1 year. Does this extend the warranty period with the 1-year seller's warranty from Backmarket? I also read that you can take out device insurance from Backmarket for a fee. I would appreciate detailed information on this. Thank you very much!