Sounds like a job for Louis Rossman:

https://www.youtube.com/user/rossmanngroup/videos

Soldering SSDs on the motherboard is a crime! Data storage modules should always be replaceable: 1. because they can fail easily (limited write counts), 2. because people need to wipe data before selling

I have seen a "for parts" Macbook on eBay with bad motherboard where the seller drilled through SSD and T2 chips to "wipe data". While drilling they damaged the topcase as well.

Go with third-party repair. It's cheap and fast.

Planned obsolescence.