Hi Viktor,
Yes,unfortunately.
1) Created Vivado project for Zybo z7020
2) Block Design added
3) Zynq processor added
4) block automation runned
5) FCLK_CLK0 -> M_AXI_GP0_ACLK connected
6) Design wrapped as HDL
7) Bitstream generated
8) Hardware design output generated
-----------------
Vitis opened
1) Vivado project folder seletced as workspace
2) Create App Project
3) XSA file added as platform
4) Hello World application selected
5) Built platform
6) Built application
7) debug as hardware (I see the green LED on board lights up)
----Nothing happens----
I used putty to see if I can sent/recieve serial data