Finally a promising looking product in this form factor. There have been a few very similar products on amazon, even with the handle, but with the usual bad reviews because of high failure rate and/or low quality cells. Lifepo4 is also really cool to see in this form factor, should be pretty durable compared to li-ion.
Article says it can charge a M2 Macbook Air 1.1 times over. The Macbook seems to have a 52.6w/h or 66.2w/h battery depending on 13 or 15" model and this article states that the powerbank has a 153w/h so it should be able to charge it well over 2x even with accounting for losses AND the larger 15" model battery. Not sure how you worked that out.
UGREEN's latest accessory is categorized as a power bank, albeit with one of such a large rated capacity that it needs its own handle. It also packs potentially camping- or holiday-friendly perks such as a Smart Digital Display, emergency LED lighting and triple USB-C ports that can charge at up to 140 watts - or 100W each even when all three are in use.