I remember being overjoyed that I needed root canal treatment because it meant i could legitimately sit down for two hours and not have any demands made on me
I remember feeling this way when I had to go into hospital for a minor procedure. The nurse was apologising it was taking so long and I said "no, no, I'm on my own with the kids normally and I can't even go to the loo on my own so sitting here in the waiting area alone is really rather lovely" - she said "i know exactly what you mean, I won't worry about you then!". I had a little nap to make up for the fact that I'd gone at least 6 years being woken up at least once a night.
It's my observation that for those parents I know that share parental leave there is usually more appreciation for both roles (working and childcare) and the relationships tend to be stronger - and less chance that there's a war over who does the most because both of them do everything and so appreciate the pluses and minuses of both.
DH at first was upset he couldn't take more leave (he didn't have the option - it was before shared parental leave) but he has sometimes had an attitude of 'you're swanning around feeding the ducks' when I'm demonstrably not. However, what is interesting is that while I take any opportunity to have a day doing something closer to his job, he is extremely reluctant to be sole carer even for a day. If he really thought it was so relaxing and fun why doesn't he want to do that more?
And in terms of employment, since I was SAHM and now trying to be part-time self employed, there's a huge assumption that his job comes first because it pays the bills. We were both applying for jobs recently with extensive, time-consuming applications and he basically told me that he wouldn't look after the kids to give me time because his job application (because it would pay more) was a priority. We had words, and he relented somewhat but I still didn't get the space free that he did to do my application.
I think that the argument could be made that actually facilitating me getting back to something closer to full-time work would actually do more for the family finances long term now. Any additional that he makes is eaten up with higher taxes, whereas I've got a LOOONG way to go for that. I don't know, maybe he's right - I think it's certainly going to be easier for him to get a higher paying job with the confidence and experience he has.
And of course having been a SAHM, I'm picking up all the homeschooling now in lockdown (and earlier in the year too - also during isolations) so a lot of the work I was doing has had to be wound down. If I prioritise my work or career it directly disadvantages my children in the short term. It's difficult to do that.
Of course if DH's employer was in any way reasonable or flexible about the load they're putting on him, or recognised he actually has children who are now at home being schooled (while he WFH), then that would probably help. But they're rubbish (hence the applying for other jobs), and we need to pay the mortgage so something has to give- and it's my work / my career.