I don't have a very good laptop, i.e. hp with Intel? Pentium(R) CPU N3540 @ 2.16GHz ? 4, Intel? HD Graphics (BYT) and 8 GB RAM.

But I always could do high resolution streaming (like tv- or cinema-movies) by using either Kali/Gnome (up to release 2020.4) or Artix. On the other hand I get visual disturbances in the following cases:
(1) Using Ubuntu, Mint, Manjaro or MX
(2) Doing an Kali upgrade (e.g. from 2020.3 to 2020.4), whereas after complete new installation of e.g. 2020.4 no disturbances anymore.
(3) New Installation of Kali 2021.1.

So I'm wondering in general why I mostly have disturbances, but under specific releases/conditions not? What is the general cause of this disturbances?

I was also wondering, where I can download an Kali 2020.4 iso, but didn't find any.

Thank you very much.