Yes, but it isn't a one click solution and sometimes it is just quicker to drag the offending nodes to the next.
Ensure your fill has a boundary. Explode the shape, deleting the original. You then have to save the profile as GS won't let you pick the new entities if you don't.
Delete the fill and you will be left with the outline. Select the lines. Select Edit>Reshape>Linetype Consolidation and go with the defaults. You will be left with the simplified outline which you can then refill.
I have on simpler shapes just deleted the shape and redrawn what was required.
Tip: If the offending nodes are present in adjoining fills at the same point, you can select both fills and drag them both to a new common point.
Someone beat me to it while I was distracted
Apple iMac Intel i9 / macOS Sonoma / AC27UKI (most recent builds.. if they work)