How do I snap vertices back to the grid when they are slightly off?

Support Basics & Interface
1

As shown in the linked image I want to snap the vertex to the grid.
https://imgur.com/a/xa534kp

2

Shift S -> snap selection to grid.

Then, holding down control, move it to the correct grid point.

3

OMG thank you! This has bothered me so much for so long!

4

abs_rel_grid_alignment
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