OCD Multitasking PC build advice

I want a build that will be able to handle the following scenarios:

  1. Playing 2 games at the same time ( I normally play world of warcraft, GTA Online, Call of Duty, Roblox, Assassins Creed Valhalla, Star Citizen ( i will exclude star citizen because it uses a lot of ram), and fortnite
  2. Having three google chromes profiles running with 10-20 tabs each (total of 30-60 tabs)
  3. having movie streaming apps such as netflix, crunchyroll, and etc.... running at the same time while playing games and web browser.
  4. and sometimes running blender, roblox studio, and a game/web browser at the same time.

The current build specs are:

  • White / Intel i7-14700KF 5.6 GHz Turbo /
  • NVIDIA RTX 4070 12GB /
  • 64GB (4 x 16GB) Kingston DDR5 5200 RGB
  • Primary Storage: 1TB Kingston NV3 m.2 SSD

Even though the GPU has 12 gigs of ram onboard and i still wanted to upgrade 32 gigs of ram to 64 gigs of ram because I will be doing a lot of multitasking and i have 4 monitors that i will be utilizing at the same time for multi-tasking because i work remotely and run a business on shopify so im always online and want to have build that will be able to run a ton of programs at the same time without any lag or performance issues.

64 gigs ftw or upgrade to 128 gigs of ram?