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QGIS - How to check if a raster has same resolution as another raster with a different CRS?

Seems to be some confusion here. If you have a satellite image at 100 m resolution, then that's its resolution. Each pixel is 100 m. (saying "resolution of 0.0025 pixels" does not make sense)...
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gdalwarp to change my raster extents

Try the below command gdalwarp -s_srs "+proj=longlat +datum=WGS84 +lon_wrap=180" -t_srs "+proj=longlat +datum=WGS84" -te -180 -90 180 90 world_360.tif output.tif -co compress=...
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Unable to merge TIFFs in one file using Warp and QGIS

In gdalwarp -dstalphais used for adding an alpha band https://gdal.org/programs/gdalwarp.html#cmdoption-gdalwarp-dstalpha -dstalpha Create an output alpha band to identify nodata (unset/transparent) ...
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gdalwarp band values of 0 turning to nodata

Since the TIFF is RGB, its data type is probably Byte, that is, it only accepts integer pixel values between 0 and 255. Since you are not changing the data type of the output, that would be the reason ...
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Orthographic Projection of Mars (MOLA) in QGIS - Visually correct results, wrong coordinates

Coordinates are not wrong. Coordinates are expressed in the map reference system. When we want to see in the status bar coordinates in another system, we can use the Capture function of the Lat Lon ...
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