Does Blender has the function like C4D's optimize: can remove isolated vertexes or some problem vertexes in picture below. They are in mid of the edge, I can not use merge by distance function.. What should i do except manual selecting them..
Use Limited dissolve
Mode: Edit Mode
Menu: Mesh ‣ Delete ‣ Limited Dissolve
This tool can simplify your mesh by dissolving vertices and edges separating flat regions.
Reduces detail on planar faces and linear edges with an adjustable angle threshold.
Always dissolve vertices that have two edge users at boundaries.
Prevent faces from joining when they don’t share certain properties (material for e.g.).