But where is the catch ?

If there is a problem with memory, windows wouldn’t have worked too.

Highly doubt memory is the issue but doesn’t hurt to check

Errors and Warnings obviousky.

you coukd redirect the output to a file

sudo journalctl -e > log.txt and upload it sonewhere for us to check

I really can’t understand anything from this article.

Hopefully someone would be able to explain it in simpler terms