If you are reading this then congratulations on the start of your system!
A few thoughts on what I think about the build:
For starters, if I could choose the system parts, I would've gone for an entirely different build: all focused on workstation grade setup that would give you the maximum amount of horsepower to really do just about anything you wanted as far as video/audio editing and production, gaming, and office work - and maybe some programming.
The thing of course is that you really don't need to go overboard unless you're doing something really intense like protein folding calculations, artificial intelligence diffusion models for image or video generation, or something that requires some kind of parallel computing.
But even so, it's good to have some serious hardware overhead because there will be times where multitasking and having tons of tabs will be somewhat "required".
The thing is I like to have a lot of "leg room" for hardware power and resource overhead since I don't like being "mobile" with computers, I'd rather have a workstation and call it a day.
Software
The software list I put together was something to get anyone started but at some point wyou'll want some really serious software but here's the thing: if you're going to go professional or you want to have some familiarity with professional software that you'll have to rent out like photoshop, then I would suggest instead buying software that requires just one payment and call it a day or just pirate stuff (I'm not going to really mention it where here).
For me, I bought old software that just works fine today as it did then, so consider older versions of software as far as Adobe. There are also other alternatives but you really have to think through what you'll be doing and why buy or pirate.
One example I would give would be Microsoft Office 2021: https://stacksocial.com/sales/microsoft ... &scsonar=1.
The thing about MS Office is that it's one of those suites that is slowly being recognized as a rental software suite than that of what it once was: a buy it once and use it forever kind of deal. But thankfully there are "buy once" options - standard EULAs so consider them as they are sold on discount.
For video production I would definitely buy something but to get your feet wet try something like Shotcut or something equivalent but if you want something at once professional, consider Lightworks, Vegas, or something similar and then learn the ins and outs (keyboards shortcuts really) and make use of whatever tools are built-in before buying third party software for fx.
As far as Audio production, I recommend Reaper and that $60 will go a very long way.
Hardware
This is the part where I tend to think to myself is something most overlook.
For microphone I recommend XLR microphones with a USB interface to allow for wide range of use for microphones that are XLR connection based - especially condenser mics that use USB phantom power. USB connection only microphones are an option.
External sound cards are the best bet to have instead of PCIE internal add ons but consider your options.
Headphones: I know you're saying that cans and earbuds are a waste on you but do consider what you get because it'll play big time later on when enjoying stuff later on for some applications where you need to have your ears in cans.
webcams are not necessary and I don't recommend them ever for your privacy. They are the easiest way for anyone - and I mean anyone - to spy on you.
As far as keyboard and mouses go, I would stick with either Logitech, Microsoft for scissor switches with rubber domes and that is it. Mechanical keyboards are not worth the hundreds of dollars and really you're not missing out. Honest.
As far as graphics cards go, there is nothing you can do really except wait for things to get really cheap for Nvidia. And you'll find the games you'll want to play are going to execute just fine the current setup and you'll only rarely want to upgrade the card.