Infill keeps "shoveling", but perimeters are fine
Normally, what you're calling shoveling is caused by having the bed too high - when you deposit enough material for a space that should be the nominal layer height high, but significantly less volume is available, it has nowhere to go but up around the edges of the nozzle.

However, in your case your temperatures are also seriously wrong for PETG. The normal recommended range of nozzle temperature for PETG is 230-250&nbsp;°C, and in my experience, you need the full 250&nbsp;°C to have any hope of printing fast. At 220&nbsp;°C I'm really surprised you're not having problems with underextrusion instead.

The bed temperature is likely even more important. Minimum bed temperature for PETG is 80&nbsp;°C. If the material is hitting a 58&nbsp;°C bed as it comes out, it's likely to cool way too fast. This may lead to what you call shoveling (especially if you see both pits and ridges rather than just ridges), but even if not, it's going to prevent the material from bonding to previously laid down lines, so that your print will end up more brittle than PLA.

One additional detail I initially missed involves your 0.8&nbsp;mm nozzle. It might be hard for the hotend to keep up with properly melting that much PETG at normal print speeds. As noted in the comments, a 50&nbsp;mm/s linear extrusion rate with an 0.8&nbsp;mm nozzle is equivalent, in volumetric extrusion rate, to a 200&nbsp;mm/s linear extrusion rate with a typical 0.4&nbsp;mm nozzle, which would be extremely fast for PETG. It's unlikely that any hotend except a "volcano" or similar (with extended melt zone length) could keep up with raising that much material to 250&nbsp;°C that quickly.