Double beam dimension 220*45 in joist with free length 4.4m?

[Robert 75]

There is a big difference in perceived deflection between 45x220 or glued beams/kertubalkar.
Unfortunately, they are significantly more expensive, so you have to ask yourself if you want to spend the money on "comfort".

That's true. At the same time, I consider that it is much faster for the carpenter to lay out the glued beams over the entire house structure with the help of a crane than to carry/cut/attach a bunch of 45x220. It doesn't cover the entire price difference, but as you say, you get higher comfort.