I can confirm pretty much everything in here. I mean at least for my "version" of it. Just to go for sure: "Keto" is understood here only in accordance with your doctor and to a very tight plan - everything else, including the stuff i do, is just a lowcarbhighfat diet in between atkins and keto.
I was up at 107 kg, got under 100 very fast, i think in 3 weeks or so. When i was "stuck", I added cardio (cycling on the hometrainer) in my schedule. All-in-all I got down to 82 kg, got a bit lazy, went up do 87, stayed there for 1-2 years, stopped smoking, went up to 97 in a month or so, am back down to 87 now. Big plus: I really got rid of my "flatulences". I shit you not (in the truest sense of the word).
It's not "easy living", you still have to keep "counting calories", but not as tough anymore as before. My typical day is bacon+eggs in the morning (or bulletproof coffee if i am either out of time, or just can't get anything down), "sweet salad" (nuts+fruits+joghurt) for lunch at work, and something like steak + vegetables for dinner. I try to keep it that way monday to friday, and have 2-3 cardio sessions per week (~45 minute each). If I stick to that, I have cheat day on saturday, where I just eat EVERYTHING coming my fucking way. Waffles for breakfast, DROWNED in maple syrup, Pizza for lunch, cookies, chips, beer, burger in the evening, whatever you have. I am then almost dead on sunday, and it's tough to go back to routine, so sunday is a "so-so" day. with that schedule I still lose weight, but not much anymore, ~ 0.5 kg/ 1 pound per week. But it really is on the limit. additional cheat on any evening = no weight lost. additional cheat on 2 evenings and sunday = weight gained.