Even if the storage is soldered on the data can still be saved if it's not the storage that died and even then, it could be possible to retireve at least part of the data. Get a data recovery specialist.
So, if the machine dies, you can’t just take the SSD and solder it onto another board somewhere. Even if you could, the SSD is part of the SOC that includes the CPU, and the Secure Enclave is part of the logic board that it was soldered onto.
Recovering data from an Apple device is intentionally hard to do. Apple wants to protect that device as much as possible from anyone who might try to steal your data by simply unsoldering chips and soldering them back on somewhere else.
If you use LUKS or BitLocker (w/o MS backup) you do not have this risk avenue (or recovery - it's your fault).