Is a SSD with the following First Aid report salvageable?
There are several data recovery programs for the Mac. A few are Stellar Recovery, EASEUS, and Disk Drill. There are several others as well. A google search on "Mac data recovery ssd" will find these and more. Most of these are not cheap. Often in the $50-$60 range. Several may offer free trials though so you can test the app and maybe recover your data in one trial.
I can't really recommend one over the others. I used Stellar once and it recovered some of my data off my HDD. SSDs are more difficult.