While most of what you said is true. That 50GB on the S22 is the difference between GiB and GB. Samsung counts this difference between GB and GiB as part of the storage used by the system. labeling these conversion losses under 'system' is a strange practice and causes confusion.

For example, a device advertised with 512 GB of storage actually has closer to 476 GB (GiB) of usable space. Likewise, a 128 GB model has approximately 119 GB of storage, with 256 GB yielding 238 GB of space.

https://www.notebookcheck.net/One-UI-5-1-bloatware-is-not-consuming-60-GB-storage-on-new-Samsung-Galaxy-S23-Galaxy-S23-Plus-or-Galaxy-S23-Ultra.692149.0.html