First time PC builder. Creator PC for casual use

My name is Nick, I'd like to take on the task to piece together a PC, my first time. I'm replacing a 10yo PC that still works decent, but I want a new, balanced build, where all components are at about the same performance level, not having one bottlenecking the performance, or have one that is overkill.

I plan to have 2 x 1440p displays, occasionally I would like connect a 3rd display 4k. The main daily work I do on it is word, excel, pdf with dozens of internet browsing windows open at the same time, while streaming news. On top of that, as a hobby, I like to dabble into video editing (davinci resolve) as well as 3D design in Fusion 360.

I was thinking at the following configuration:

CPU: (1) Intel Core i7-14700K Raptor Lake 3.4GHz Twenty-Core LGA 1700 Boxed Processor - Heatsink Not Included ($369.99 EACH)
Motherboard: (1) ASUS Z790-Plus TUF Gaming WiFi D5 Intel LGA 1700 ATX Motherboard ($249.99 EACH)
RAM: (1) TeamGroup T-Create Expert 64GB (2 x 32GB) DDR5-6000 PC5-48000 CL34 Dual Channel Desktop Memory Kit CTCED564G6000HC34BDC01 - Black ($179.99 EACH)
Video Card: (1) Zotac NVIDIA GeForce RTX 4070 Ti Super Trinity Triple Fan 16GB GDDR6X PCIe 4.0 Graphics Card ($799.99 EACH)
M.2 / NVMe SSD: (1) Samsung 990 EVO 1TB Samsung V NAND TLC NAND PCIe Gen 4 x4 and PCIe Gen 5 x2 NVMe M.2 Internal SSD ($79.99 EACH)
M.2 / NVMe SSD: (1) WD Black SN850X 4TB 112L 3D TLC NAND Flash PCIe Gen 4 x4 NVMe M.2 Internal SSD ($309.99 EACH)
Case: (1) Montech AIR 903 MAX Tempered Glass ATX Mid-Tower Computer Case - Black ($79.99 EACH)
Power Supply: (1) MSI MAG A850GL PCIE5 850 Watt 80 Plus Gold ATX Fully Modular Power Supply - ATX 3.0 Compatible ($104.99 EACH)
Heatsink: (1) Cooler Master Hyper 212 Halo CPU Air Cooler - Black ($34.99 EACH)
Total: $2,209.91

I have a hard time deciding on a motherboard. I chose this MoBo for the thunderbolt header for future option, and for it's IO ports. The video card may be over kill? I'm also considering the lower rtx 4070 Super ($200 less). I'm pretty set on using the I7-14700k, 64Gb RAM.

Your advice is greatly appreciated.

THX

NICK