I'm in America though I work for a firm based in northern Italy (Lombardia), with colleagues in France, Portugal and Switzerland as well. The lockdowns faced by those in western Europe seemed extraordinarily difficult, in particular the much greater restrictions on being outdoors, and the fact that many Europeans live in much smaller homes than in the US and do not have private yards/gardens as commonly. It has been very tough for my colleagues. You're definitely not alone.
Personally, I feel a bit like I'm going crazy. I really miss getting dressed up for the office and the social outlet of chatting with coworkers. We were flexible re: wfh before COVID but most of us still went in a few days a week.
I love my spouse but miss having more people than just him to interact with!
Not only have we been fully WFH in the EU, in many areas we were not allowed to leave our homes except for groceries, for extremely long periods of time. I live in Madrid, this went on from March 30 to May 2 (I'm having trouble finding the exact dates, as they are not the same for every region in Spain, so we might have been locked down a bit longer than this).
After that, there were very rigid limitation about at what times we were allowed outside and at what times. At the beginning we were not allowed to be further than 1KM from our house, and only from 06:00 to 10:00 and from 20:00 to 23:00.
I'm having a lot of stress due to wfh, but I realize that with scandinavian working conditions and an office job I have nothing to complain about (also pretty relaxed rules). I've saved money on not commuting. I need to help everyone get through this, I don't need help myself.
I wouldn't minimize your struggles simply because others potentially have it worse. It's okay to say "this really sucks for me" and also be thankful for the things you do have that others might not.
I am in Europe though, which makes me feel the main reason for this is lockdown/WFH.