I actually found Cinnamon to be more resource intensive than Gnome on most computers.

When excalidraw was mentioned in another comment I think it would also be worth to mention tldraw even though I don’t kniw whether it can be counted as an replacement since I never used draw.io.

https://github.com/tldraw/tldraw

On Android, from FDroid you can install an app called Seal

I like ytdlnis more.

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LibreTube

AFAIK Opera has some kind of patent for this, so other browsers cannit implement it so easily.

I use ChatGPT for these kinds of questions nowaday. I didn’t have a clue how linux cmd prompt worked at the start, but was able to install wi-fi adapter drivers, and do various other stuff and even remembered some of the commands. But yes. Some things are bigger hassle in linux, depending on distro you use. With Linux mint creating a desktop icon was a piece of cake, but with Ubuntu… Oh my.