Not the manual, but there's one of the books. And then, you'll find a lot of tutorials and stuff linked in the German forum: http://www.davinci-resolve-forum.de
I second Deepl, much better than Google.
No, an iGPU is not enough, and you can't use HEVC 10 bit 4:2:2 in the free version.
Studio 18.6.5, MacOS 13.6.5 MacBook M1 Pro, 16 GPU cores, 32 GB RAM and iPhone 15 Pro Speed Editor, UltraStudio Monitor 3G, iMac 2017, eGPU