Can I get output in other CRS than UTM?

[StefanBrand]

The crs parameter doesn't seem to influence the output CRS. The result of the Batch API is always in UTM.

"processRequest": {
  "input": {
    "bounds": {
      "bbox": [],
      "geometry": {},
      "properties": {
        "crs": "http://www.opengis.net/def/crs/OGC/1.3/CRS84"
      }
    },
   "data": []
  },
  "output": {},
  "evalscript": "string"
},

Also the documentation specifically mentions UTM, but doesn't talk about other CRS.

Note that the processing results might be in different UTM zones (and thus different CRSs) if your area of interest intersects with more than one UTM zone.

The tilingGridId parameter also doesn't affect output CRS.