You can remove them and clean them up and if you dare, get a mouth full of water and fit the nozzle side over your mouth and blow / push water backwards and any trapped dirt exits the way it came in. I’ve cleaned a few like that over the years and before you refit the nozzle pump some screen wash through the open end of the pipe.
The Tipo manual says they are fixed so you can’t adjust the aim. One of mine was a bit low and I had a go with a needle file. Now they cover the roof with water. Maybe OK for motorway driving as it should all now hit the screen. Seems a bit concentrated in the middle, not much spread so I’ve ordered a set from amazon (search OEM 52023509,52023510 and a set come up for £8.49)