Eat Soup

The video crashed their website within minutes! 🤣

I have a 1440p ultrawide myself and I would never go back to anything less. 1440p is really just the sweet spot and I can tell the difference between it and 1080p but some people probably can't. I would definitely say an ultrawide is better than 16:9 but again that would just depend on personal preference.  Having the extra horizontal real-estate is much more immersive in games and allows for multi-tasking better.  
 
Bottom line is I would say yes it is definitely worth it. I'm pretty sure if you look around the price difference isn't always a 60% increase, just depends on what you look at and what features you want.

with the right card, DLSS, and games which will actually show off the pixel density (27in 1440p is great, pair of 24in 1080p looks the same) My wife runs a pair of LG 1080p ultrawides. They look awesome and do everything she needs for work/school with 4 documents up at once, never needed 1440p and it really won't improve her workflow or gaming experience at all.
 
https://www.amazon.ca/LG-29UM69G-B-21-Ultrawide-Monitor-29/dp/B06Y634VP9/ref=sr_1_3?dchild=1&keywords=ultrawide+lg&qid=1625186972&sr=8-3
Have to use display port for 75hz and full colour. Definitely recommend a $50-75 monitor arm as well since the stand is lacking adjustment.

I have an Acer which is about 4 years old now and haven't had a problem so far. Never had a MSI one before so can't say what they are like but there other products are usually great so wouldn't see why the monitors would be any different.
 
As for the two you have shown the MSI would be would I would go for. It's got a higher refresh rate, and much higher contrast ratio, a nice 1500R curve. Personally I would say those differences are worth the added cost but will depend on whether those things will bother you or not.

So I jumped on the train early with the PG348Q back in 2017 or so. Essentially immediately right after it was launched. 3440x1440, 100Hz, true G-Sync, IPS. I still use this thing to this day and will never go back to 16x9. The alternative to my PG348Q back then was the Acer X34 with essentially the same specs. The Acer you linked is a far inferior product to the old X34 from 2017.
 
2560x1080 ultrawides don't really make much sense to me. You're looking at vertical resolution from 15 years ago. Don't do that to yourself.
 
100Hz 3440x1440 Ultrawides in 2021 at $500 I think is a fair price. I paid $1300 for mine back in 2017 and the reason they're that price now is the current crop of high end 3440x1440 ultrawides have significantly moved up in performance and are still over $1000. The MSI you linked for a low end 3440x1440 ultrawide will still be a good experience. 
 
The next step up that I want to upgrade to are the 38" 3840x1600 panels from LG. Problem is they're $1600.

I mean for $30 more you could get this, basically the same except is 170hz https://www.newegg.ca/p/N82E16824012018?Description=1440p gaming monitor&cm_re=1440p_gaming monitor-_-24-012-018-_-Product

Yea m.2 has basically replaced mpcie. 

Well, you can go to their YouTube video, which explains how it works. 
Or read the bottom of their page. 

It will def be fine. The 3100 doesn't bottleneck the 5700XT so the 5700 will be a good combo with a 3300x

The 3300x performs roughly the same as the Ryzen 5 3600 in gaming. I don't think you will be bottlenecked unless you're playing large open world games then you might be slightly bottlenecked because of the 4 cores.

I'd honesty recommend getting a power supply that is around 1000W since the 3080 it notorious for bringing down power supplies while in games (with a nvidia recommended psu amount) and if you're overclocking, its gonna be far more. The extra headroom will ensure that your future cpu upgrade will go smoothly.

Gotcha, i will look in my store and update my post with 1000W choices 

I believe that all sata ssds should be compatible with any system that supports the sata and power cables. 

I wonder how many people will enter this time, my guess is way less than last time, because there isn't any international contestants. Also how many entries were children with their phone cameras? That's all i see when i look up the hashtag on youtube.