Using working MacBook to read data from dead MacBook's SSD

My old macbook died due to a water spillage but my friend has a working, identical macbook (A1466) that she no longer uses. What potential problems might I run into if I replace the working macbook’s SSD with the dead one’s to try to read the data?

The current situation is:

1. I am not sure if the SSD sustained water damage and if it still works

2. Some chinese guy I found on wechat claimed that he has done what I am trying to do before, and has successfully recovered the data

Now, the whole point of this endeavour is to save a few bucks. I know of the existence of SSD-to-USB enclosures and computer repairers, but they’ll likely cost me $AUD70-100. I want to do this myself first before I sink this amount of money.