I have created a mesh with boolean operations (bool tool) and I need to have it ready for 3d print. Now I've noticed some weird geometry happening but I cannot determine what it is. You can see in the screenshots that there are weird shadows in object mode but in edit mode it seems fine. I checked the normals...they appear to be on the outside. I tried remeshing and decimating but the result wasn't nice at all and I admit I probably don't master these tools very well. I attached the blend file here for reference.
I would appreciate any help or suggestion to be able to have this ready for print.
Thank you!