generally correct, but weren't you an enemy of general answers
generally unpopular is financing the worthless ancillary costs, which do not make the property any more valuable. this includes the notary, real estate transfer tax, and also the broker. this item can already amount to 1-2 annual net salaries, yet the place does not get any better because of it.
since you're already asking like that, you probably don't have mega equity. usually, people who don't earn much also don't have equity. without equity, the interest rates are significantly higher, which increases the risk of a crash even more.
it gets tricky if you finance an older used place 100% and also want to finance the renovation. because then you can easily go well over 100% loan-to-value, and then it gets more expensive again.
otherwise, just say what you want to do and what you have.