It is most definitely difficult and near on impossible to home school your own children whilst working from home full time.
I say this as a teacher with experience of the curriculum and teaching children. Depending on how independent your child/ren are and their ages, some of us will find it easier than others.
I am managing to do this but only because I am focusing on consolidating learning and not having the expectation that I teach my children something new.
We all sit at the dining table and I set them off with something they can usually get on with. They have a help me card. Each child gets 2 of these per 'lesson' and once they have used them, that's it. Initially they found it hard but I needed them to decide if they just couldn't be bothered or if they actually really needed my help. 9 times out of 10 they didn't read the question or couldn't be bothered. After a couple of days routine kicked in and that's how it works for us. I tend to do school work them in the morning and we stop school for the day at around 1:30pm.
Joe wicks gives me 1/2hr to start my calls for the day
1/2 rest after this - again so I get a chunk of work in
45 mins of maths
30 mins playtime - really I kick them out in the garden to give me a chance to work in peace for 1/2hr
45 mins english
Lunch
30 mins independent reading
45 mins topic - they literally do what they are interested in.
Give up and hand over iPads or kick them back outside.
This means I am more efficient in the afternoon but I still have meetings etc during the time they are working on their school stuff.