Will the force ejection (by force eject option) of an external SSD drive cause memory corruption?

First memory and storage are two different things. Memory is volatile and temporary so anything stored in memory disappears when rebooting a computer. Storage is meant to be more permanent. Data stored on a drive should still be there after rebooting a computer.

https://www.crucial.com/articles/about-memory/what-is-the-difference-between-memory-and-storage

Yes, you can corrupt the file system on any volume that is not properly unmounted which could affect any file on that drive. Whenever you see macOS show a notification about not properly ejecting a drive, then potentially the file system and data on that drive could be damaged or lost.

When moving files to a different volume/drive, I recommend copying files, then deleting the files from the original location instead of moving the files. If a "move" is interrupted for any reason, then you may end up losing all those files even from the original location while the destination won't have all the files either. At least by "copying" the files first if the process is interrupted, then all the files will still exist at the original location so you can try again.

FYI, you should always have frequent and regular backups of your computer and all external media which contains important and unique data.

Run Disk Utility First Aid on the volume.

Is this drive a standard data drive, or a Time Machine drive, or macOS boot drive? If the external drive is just a standard data drive, then I would avoid using the APFS file system since these types of issues seem to be common. APFS is a new file system which still has some growing pains and First Aid is unable to repair many types of failures. Unfortunately there are no third party utilities for repairing the APFS file system since Apple has not yet released the necessary APFS documentation. For a data only drive I would recommend using HFS+/MacOS Extended (Journaled) file system instead.

If this drive is a TM backup drive or macOS boot drive, then you must use APFS.

You should run First Aid on the hidden Container to see if it can be repaired. Within Disk Utility you may need to click "View" and select "Show All Devices" so that the hidden Container appears on the left pane of Disk Utility.

If this is a data drive, are you backing up this drive? I'm wondering why there is a snapshot. If the errors are just in a snapshot, then once the snapshot is deleted the problem will no longer exist. I don't know whether all those errors are in a snapshot. If this is a backup snapshot, then I honestly don't know if it is a problem for the backup.

If this is for your macOS boot drive, then you should run try running First Aid from Recovery Mode, Internet Recovery Mode, or a macsOS USB installer. Just make sure to boot the same or newer OS so that Disk Utility will understand the drive layout and file system properly since later versions of macOS have introduced changes which may not be properly recognized by older versions.

If there are any unfixed errors outside of the snapshots, then the only way to "fix" them is by erasing the whole drive or volume (possibly the Container) and restoring the files from a backup or clone.

File system issues do not necessarily mean a hardware issue with the drive.

FYI, I'm not completely certain which drive has the errors you have listed since you were discussing force ejected external drives, but I'm getting the impression the errors are on your macOS boot drive.