Assuming you get a job, it's actually not difficult. If you work in tech, you can probably even get a visa that gets you PR in 3 years. I moved mostly on a whim

Assuming you get a job, it's actually not difficult. If you work in tech, you can probably even get a visa that gets you PR in 3 years. I moved mostly on a whim directly prior to the pandemic, and haven't run into any major stumbling blocks. The language barrier is the biggest issue. Assuming you live in a large city (and really, you should), the town halls have translators. You may need to wait for them to be available, and the translations may not be amazing, but they'll help you solve any tasks you need to do. The next biggest issues are getting a phone number (you need a residence card first), getting a bank account (you need a residence card and a phone number), and getting a credit card (you need a residence card, a phone number, and will need to deal with them sending your card with your katakana name on the envelope). If you have a job, they'll help you do all of these things. Getting housing isn't really a problem. At this point there's lots of gaikokujin housing (short-term rentals, month-to-month leases, sharedhouses, etc). It's possible to find it online with no Japanese language skills. Again, if you have a job, they'll help you find housing. If you're coming in as a student, your school will also help you with all of these things. Pewdiepie makes money off of making content. Saying "hey, this isn't very hard" isn't entertaining. Don't use him as a real-life example.