I could only watch up to Thatcher's meeting with the Queen. I grew up in the UK during this period, and Thatcher's election had enormous and long-reaching (negative) repercussions for the country and for my family.
One of a handful of times I ever saw my mother cry was when we heard the announcement of Mountbatten's death, and I just can't bring myself to watch.
If it weren't for Covid, maybe I would have persevered, but it's too much right now. The fact that Gillian Anderson is nailing it makes it worse, because the sound of that voice still literally makes me nauseous. It's just all too close to home.