> Cheeseburgers are amazing but they are a hell of a lot less appealing with no bun, onions, tomato, or ketchup

This is true, but honestly the only one of those you really need to cut out is the bun. The onions and tomato add up to 2-3g of carbs, and the ketchup is another 4g, so the whole burger in a lettuce wrap would be 6-7g of carbs, not at all bad for a meal! For reference, I use myfitnesspal to keep track of my food consumption and to research carb/calorie counts.

> Eating no more than like 20 carbs a day is really hard and for me it affects the quality of my life too much

Would 50g be more sustainable? Or 100g? From what I've seen, the 20g limit is mostly an introductory phase. 50g is still a huge reduction from what most people consume on a daily basis.