I’m about to just plan for 2 × 1.82 TiB of 2 Samsung 970+ NVMe SSD’s, an 931GiB Samsung QVO 2.5’’ SSD, and an 894GiB Intel 2.5’’ SSD
My main use is including heavy retro gaming, heavy virts, slight to medium modern gaming, heavy wallpaper enlargements to 5K PNG ...
Regular YTube post-products, and medium revivals of rescued-to-be-revived video pieces whose individual avg size is about 3GiB
Under 64GB DDR4 RAM’s whose 16GB will be in use for APU Radeon, does the setting feels good?

it depends only on you and your needs. I always check if my setup can be extended, so I can add more RAM, more SSD if required.

I'd go with the disks (≅5.5TB) if you're going to use them. Perhaps you have a niche situation that requires your pc to be a file server as well, I don't know. Otherwise, storage is excessive Likewise 64GB would hold a 4K video in ram. With such a heavyweight spec, you'll probably need serious network capability, fibre optics or the like. You haven't specified that.

I would search the distros forum to see how well the new "NVMe SSD’s" are supported by the kernel. I
would use 1-2 usb drives as storage on the wallpaper and video edits. Can get a 4tb for less than $100 US.

I have an another 16TB+ WD NAS (as my own serious server) for finally setting down much huge files i don’t that often use
And i also have 64GB DDR4 RAM’s and an AMD APU R4750G with whose gen of Zen2 Lucienne-G, 8C16T of CPU and 8 Compute Units in Vega8-GCN of internal Radeon
I have fibre optics set for me by dad

Fibre optics (even plastic fibre optics) is great as long as you have big pipes all the way down.

You started out like you were a home user using 1st person singular pronouns, but apparently you have the investment of a commercial outfit. Words like 'we' and 'our' are more appropriate for a business. Before anyone can offer sensible advice, we'd need to know the task(s) you're undertaking or the services you're providing.

I’m never about to run those evrything for a business, you mean my settings feel too high for personal use?
No i’m a casual modern gamer × heavy retro gamer with whose gameplays for shares by OBS and onto YTube etc
I’m also about to share my Christianity, politics, FQ (Financial quotient), mecha military, wrestling, FOSS, and cuties talks with deep analyses onto YTUbe
And i’m instead about to make everything chiefly for my own personal use, with also sharing that NAS for my parents as well to have their photos also backed up there

I also got 1.82TiB 2.5’’ mecha drives for just 18 British Pounds per 931GiB, maybe NVMe SSD’s have to be 1.82TiB per individual, and i have 2
But for mecha drives even when as tiny as 1.82TiB of 2 individual mecha drives still ok, which i have an WD 16TB+ NAS for the bulking of a final setdown of the much huge files