I dont understand how column type work, why I need it?

One important thing is setting a link column to URL type so they become clickable hyperlinks.

If you haven’t found other uses for the column types, then that means you’re not using Clay enough

I actually have bugs trying to change column type, still cant understand also why you use column type? it allows you to more easy export leads to crm? or something else?

Column types only change how things work/look on Clay. The data will always export the same, no matter which columns settings you have

Tell me about the bugs. Maybe I can help.

so whats the usecase of column type, im trying to understand if it will help me somewhere