Thanks for your answers @Commodus
I decided to get Tab S6.
In my opinion paying 150% of S6 price for iPad is not worth it. (I won't buy Air because I want more horsepower)
writing experience on S6 is good enough
the apps I use are free
the apps I have already purchased on Android phone are downloadable on my tablet
s-pen is in package
android is an open system so I can customize it and easily transfer any files from my laptop
and two year warranty is also good
I get big and expandable storage so I do not have to worry about 1GB PDF files
it's not Apple (which I consider to be a plus)
I had android tablet previosuly, I did not experience any problems and it was back in 2014 (or 15, can't remember)
What?
I am 100% sure that there will be updates available at least for one or two years, and if not, I can live with what I have. I can accept that for the price.
That's BS, I personally tried both devices, input is the same (or at least I don't feel the difference)
So you're suggesting I should spend that 150% just to get an app? Ridiculous.