Surface laptops are not made by Microsoft. The OEM is Pegatron, essentially a part of Asus. While they are definitely among the thinnest and lightest and use some innovative solutions to achieve it, there are also trade-offs and drawbacks, and, unfortunately, widely reported quality issues, even confirmed by Microsoft themselves in a leaked memo:
https://www.thurrott.com/mobile/micr...ty-reliability
Unlike most other laptops, including other thin-and-light ones, Surface devices have an iFixit repairability score of 0 out of 10, which is even worse than Apple products: essentially, everything inside is glued together and cannot be disassembled without causing permanent damage.
In short, these are devices with a premium price tag (exceeding $3,000 for some configurations) that are unfixable by design and suffer from a high failure rate. Feel free to make your own conclusions.