I would only recommend not starting with Ubuntu, there is a cultural idea that it’s the easiest, but it really isn’t, and has some very unique “features” that aren’t for everyone.
The bigger question is not what distro to get, but what desktop environment to chose, because that will be your interface and that’s where the first point of tension will come from. I highly recommend KDE.
Other than that, every modern distro will be basically the same, you install steam and it just works.

There are, broadly speaking, two categories of problems with LLM generated code (well, everything, but code here specifically). One is purely technical, does it bring anything to the process, does it broadly speaking saves you time or effort. And the second is everything else: environmental impact, the bubble of it all, the consolidation of power to all the worst people, erosion of skills, death of education, inflation of prices of consumer electronics, psychological impact, and so so so much more, all lumped together as non-technical downsides.
A bunch of llm-proponents, and here we sadly have to include even Linus, are only engaged with the first category of problems, throwing the whole second category aside as “irrelevant”. And a lot of those people are smart enough so I don’t believe they don’t see this.
If there was only the problem of the tool being kinda shitty but useful for some people, I wouldn’t be so against it. I still don’t believe they actually benefit from it, but if they think they do, I’m not going to argue with them about it.
But it’s fundamentally not true. You can’t ignore the second category in your evaluation. To quote Linus himself,

But the solution is not to put your head in the sand and sing “La La La, I can’t hear you” at the top of your voice like some people seem to do

about the fact that even one of the downsides from the second category makes the whole “but I, a person with 40 years of experience, can use llm in such a way that it sometimes produces some benefit” not worth it. No benefit of it is worth the fact that the new generation of junior developers don’t know how to write code on a fundamental level, while elon mask owns all of humanity’s personal data and can do whatever he wants with it. Even if those benefits were kinda big, it wouldn’t worth it, but they aren’t.

LLMs are tools and, like all tools, are more fit for some purposes than others

This is the whole problem, this take is disingenuous. Nobody who actually argues in good faith and knows what they’re talking about, argues that LLM isn’t a tool, or it’s something bigger than that. The argument that is being ignored is that LLM is a tool that inherently has downsides that are bringing more “bad” than it brings “good” when it’s useful. But proponents successfully argue that they can use LLM with some benefits, and act like they answered something, and any retaliation to that is unreasonable.
My favourite analogy is asbestos, and I say it as a huge disservice to asbestos. Asbestos is an amazing material that legit has many very important uses (way more than any LLM will ever have), but we’re not using it because we understand that no matter how great of a insulator it is, and how nice it looks as snow replacement on a movie set, and how wonderful it is in a cigarette filter, the supercancer it causes kinda nullifies all that.

and can be used to amplify good work too.

But at this point I would argue the downsides aren’t worth it. Especially when the bubble pops, subsidies run out, and people will be forced to pay the actual price

And 3 accounts are already “contributing”. That’s not better. It’s worse.

They don’t have any code yet but 3 slopgen accounts are already connected. It’s worse, it’s actually worse.

The technology is nowhere near being good though. On synthetic tests, on the data it was trained and tweeked on, maybe, I don’t know.
I corun an event when we invite speakers from all over the world, and we tried every way to generate subtitles, all of them run on the level of YouTube autogenerated ones. It’s better than nothing, but you can’t rely on it really.