I'm quite new to the OGF community, but I have much longer experience on OSM. On OSM I got quite used to extracting data through Overpass and then editing the desired dataset in JOSM. Since the time I've been here on OGF, I've tried and constantly failed at doing the same with the dedicated OGF Overpass, only to find out it's simply impossible. This is because the Overpass server stores no metadata anymore since the GDPR law went into effect, and that metadata is required to edit the dataset in JOSM. But... I found a workaround! I wrote a one click script to extract all IDs from a .osm Overpass dataset into a single list, so you can easily paste this into the 'Download objects' dialog in JOSM. JOSM will then download exactly what you previously got as output from Overpass Turbo, and you're ready to edit right away!
So how do you get this to work? First you have to download your data from Overpass Turbo as you would normally do ('out meta' isn't necessary, 'out skel', 'out geom', 'out', or even 'out ids' will all do the job). Then click 'export' > 'raw data', this will download a file called 'export.osm'. Next you run the script you can download here by simply double clicking the batch script which will run the other script (which is a PowerShell script). Make sure the export.osm file is in the same folder as the script. The script will run and in a matter of seconds you will have a new file called 'List.txt' which contains a list of all IDs, and they're automatically copied to your clipboard too. In JOSM, paste this list into the 'Download objects' dialog. Make sure object type is set to 'mixed', and in your JOSM preferences the checkbox 'Use Overpass server to download objects' is disabled in the connection settings. Then you just have to click 'download' and voila, your data is loaded into JOSM.
It's really simple to use this method, and if you want you can make it even simpler. I've put a few parameters in the beginning of the PowerShell script you can easily change by right-clicking the file in Windows Explorer and then 'edit'. Here you can change the input and/or output file path and name, along with a few other options such as 'No output file' or 'Automatically delete input file'. I added descriptions next to each parameter so it will be clear what everything does.
I will probably create a small tutorial with some visual feedback on the wiki too, so it'll be more clear and it's easier to find so this method can be used by future mappers as well. I hope you all like it, let me know what you think of it. Happy mapping!
Squizie3