Disk problem on macOS Catalina

Hello,

I have a problem, but I don't know what the problem is, therefore I don't even know what am I supposed to google for. I'm gonna break the TLDR rule and write down every step I took hoping that someone may notice the flaw and maybe help me fix this. (please)

Chronological facts:

Two weeks ago I started to delete a lot of apps and files for the sake of storage. I may used some 3rd party apps like Disk Expert to help me get some more storage.

I was going to make room for a bootcamp installation of Windows. And installed it afterwards. Used it for a couple of days and forgot about it.

Yesterday I noticed my Google Drive desktop app (Backup and sync from Google) encountered an error saying it can't find my Google Drive folders. My reaction: mhm, weird.

Today I noticed that I can't use my Spotlight to run apps, because it would show only mails, browsing history and some other irrelevant stuff, but not apps. This is the moment when I knew **** got real.

Googled the problem, tried some fixes but neither worked.

Then I thought it may be the bootcamp that was causing all the problems. So I went to Bootcamp app to remove the Windows installation, but surprise: Bootcamp couldn't find any Windows installation. It suggested me to check for BitLocker and deactivate it. Restarted, booted Windows and searched for BitLocker but it didn't show up. So I guess I didn't have BitLocker activated.

Got back into my macOS and ran the Disk Utility: disks show weird, I couldn't run any First Aid because it returned only errors (attach-1.png):

Then I went to the Disk Startup and even more bad luck: no disk showed (attach-2.png):

So I Googled some expressions like "bootcamp", "disk problem", etc and Recovery Mode popped up as a solution so I tried it, and from Recovery Mode I went to Disk Utility and finally saw my partitions:

Macintosh HD

Macintosh HD - Data

Bootcamp

Tried First Aid on the first one, went okay.

Tried First Aid on the second one, got warnings and errors: (attach-3.jpg and attach-4.jpg):

So I left Recovery Mode, got back into macOS and checked again Disk Utility. Disk still looks weird. Startup Disks still don't show any disks. Spotlight still doesn't work. Google Drive still can't find any drives.

I'm afraid to force delete the Bootcamp installation, because it may do even more damage to my poor disk.

While I was Google-ing for some support, saw someone said he ran this command in terminal where some logs may show some stuff that you would find useful, therefore, here it is: (attach-5.png):

Can someone help, please? :)

Thank you,

CR