I think that’s fair feedback; there’s a lot wasted space and the large pill shape is awkward on the eye. A circle would be just fine; it uses the least space. Please show application windows full screen; when there is the blue/purple desktop showing, it’s wasting space. The constant zooming in and out (presumably automatic) is very distracting and unnecessary. Sure, it looks ‘cool’, but it’s not good for focusing on the content. After all that complaining, I enjoyed the content! Thanks.
The overall topic is interesting and well presented. A tip from me: Try to speak english like a drunk, that makes it more authentic and you leave the german accent behind you. Improve by the critic inputs, not the well done parts. Like you have pretty good skills on Video Editing as it seems, no need to tell you this, good job anyways. But please, work on your English pronouncing. The School English in Germany is honestly not the best what we get teached. However, have fun and keep up the good work.