Windows Partition Disappeared

Volumes only looks like this:

All Devices looks like this:

You toggle them from the View menu (based on you previous photos, your View icon is in a slightly different space - well, and this computer I'm on happens to be running Catalina so that's the version of Disk Utility I'm capturing today):

Other users and shared is most of the times not your windows partition I am afraid..... I have those to without a windows partition

If you boot from macOS recovery and do disk utility there, what do you see?

Hard to say actually. It looks like Disk Utility is only displaying Volumes. Up at the top where it says "View" you should switch it from "Show all Volumes" to "Show all Devices".

If there is a BOOTCAMP disk, it is in a different partition than your macOS volumes, and may not be mounted even if it exists. Right now you can only see mounted volumes, so there's a chance something is there but you can't see it unless you are looking at the device level instead of the volume level.

you are looking at stuff under the heading: "disk Images"

These are packed away and compressed things that CAN be unpacked and Mounted if required, but these are NOT your active disks. MacOS Base System is the stripped-down system that runs recovery, for example. That is why it can be under 2 GB in size.

Your active disks are at the TOP of that display, based on your Apple SSD AP0265M media device.

The part you have highlighted is under Disk Images - and is, in fact, the uncompressed recovery disk image for your computer. You need to be looking under Internal (for you, APPLE SSD AP0256M Media) - that's the disk in your computer with all the structures built on it.

Unfortunately, the only thing on the disk structure is the APFS container (disk3) and the macOS volume group inside of that. No sign of Windows.

Can you highlight the APPLE SSD AP0256M Media line and see if it shows any free space when you do that. If it does, then there are a couple of people here who have the background to help you - maybe - rebuild the disk partition map to recover - maybe - the partition.

Yeah, there is no BOOTCAMP partition there. Not just overwritten, either...it looks like it is in the original pre-BOOTCAMP state, which usually means BOOTCAMP Assistant was used to remove the partition and recover the space properly.

Not saying that other ways of overwriting aren't possible - but usually that sort of thing happens, there are other issues, like the space used by Windows going totally missing because the partition map is still registering the space allocated to Windows even though it's empty.

If you hold the "option" key when starting up the Mac, do you get to a bootpicker screen that lets you choose which OS to boot into?

If not, what does happen?