Im having the same challenges. In my case working from home not by choice, and will likely continue to be remote for a few more months.

Its not too bad when the kids are at school, but my biggest challenge is to convince my wife that 'I'm working'

I keep telling her 'No, I cannot watch the baby or run errands' because I need to focus on what I'm doing. She tells me she understands ,but after a few days it starts again.

I've done Coffee shops and libraries and I like working in that setting, my two main concerns are

- Meeting/Phone calls ( I dont want to disturb others)

- Physical Security ( too much of a hassle to take my laptop with me to the bathroom, and no proper anchor point)

If I don't have any more meetings for the day, I will just go and work from the Library/Coffee shop.

I've seen other guys working from coffee shops, that somehow take phone calls and attend meetings ,and I can barely hear them. If I ever master that skill "speaking quietly, yet clearly without actually whispering" it would make a big difference in my life.