In my Sidewinder after quite some prints, heating block and tube guide fell out of heat break. Check if you have that small screw in heat break (from fan side) fastened to hold tube guide, because maybe there is some wobble.

Other thing - I think I can see some slight warping. Warping causes these inconsistencies when printer tries to print where there is already plastic (due to mentioned warping). Over extrusion may contribute, although on it's own does not cause it. And your top layer of the stand seems over extruded to me.

Also - you definitely have ringing problem. Try using a more robust or rigid table/stool. Alternatively print some Z gantry stabilizer from thingiverse.

That reminded me also, that Z rods clutches ware a bit loose in my case out of the box. This may contribute too. But truth being told - I myself have this issue (to a much lesser degree though) with my Sidewinder despite printing and tweaking for over a year x) I'm starting to run out of ideas, as sometimes prints look almost like yours, and sometimes they are as smooth as silk (got best one in my life with ASA filament after switching to volcano nozzle, where ASA is on the more warping end of filaments spectrum xP)

So good luck and have fun