Yes, it looks like the ads started coming in when MS realized the potential earnings from a market dominant browser. Since they lost the browser war, they have now converted their operating system into a browser with integrated crap (like IE toolbars) in forms of bing search, cortana, app recommendations etc.
No. AMD Ryzen™ 7 PRO 5850U can boost upto 4.4Ghz, likely it would be consuming upwards of 50W for that short duration.
An easy way to verify it, is to measure the benchmark delta when on battery and when connected to an external power source. (M1 benchmarks remains almost the same)
Intel i7 9750H for example has a P2 of above 80W and only then can it break the 4Ghz barrier. Even though the processor is technically rated only 45W. At 45W it can just maintain the base clock i.e. 2.6Ghz on all cores.
M1 is much more efficient than any x86 chip on the market right now.