Name changed, but long time lurker...
I recently underwent some surgery, however, a week later I am back to what passes for normal, so asked that my husband dispatches the in-laws home as quite frankly, more than enough toes have been trodden in in this week alone (think making decisions about bedtime etc and my DC’s routine, not to mention criticising our use of a visual time table due to DC’s ADHD and ASD, then MIL getting offended at my reaction to the question “I’f you treated him normally, he would be a normal child”)
So, DC is at school, and I tell both ML & FIL that I have 2 back to back work meetings on teams and that I can’t be distributed, so maybe they’d like to stay in the lower part of the house (why they’d ever need to come up to the highest point in the house(loft room) where my office is is beyond me) and reiterated that the meetings are important and back to back so won’t be available for 3-4 hours.
Anywhoo, not 20 minutes into the meeting I hear “op, op” switch off my mic and cam and reiterate that I am in a meeting and that I can’t come away from it, turns out she wanted to tell me that FIL burnt his toast 
So I go back into my meeting, and 10 minutes later “op op” so having given a fair warning and not up for snapping at her and having to miss another 5 minutes of my meeting, I ignore her,
But the shouts get louder “OP!”
She then suddenly bursts into my office, demanding that I come downstairs and “shouldn’t be working while they are there as I’m not being a good host” (WTF lady, I had surgery a week ago, shouldn’t be cooking/cleaning/ hosting your ass and only went to my meetings to escape you constantly talking at me about how “things were done differently in my day, and the old ways are best, ans we should take her advice as we are screwing up DC by having them labelled” (she’s 64 fgs, I’m pretty sure DH & I, 35 and 32 respectively) have a firm handle on being adults by now, having been married for around 8 years with a 5 year old DC 
DH totally on board, has told his mother that she is under no circumstances to ever go near my office again and “if WTF ever speaks to you again, it’ll be a day too soon in my book”
But, given that I may be being sensitive, WIBU?