@AkuAnakTimur Sentinel Hub used to always be prohibited for OSM use as IIRC their TOS said noncommercial only.
Not too hard to download a Sentinel image from the original agency and get #QGIS to spit out an .mbtile of e.g. just z15 tiles that JOSM will happily treat as a tile layer (with plugin). If you name it sensibly you don't have to modify the source tag too much either.
@InsertUser
I see... that's the case.
Now I'm using EOS's tool to simplify my workflow: https://drive.usercontent.google.com/download?id=1gsGVhQUqNACX403Me2hGWwkhMdVpwjJg