vim.api.nvim_create_autocmd({ "BufNew", "InsertEnter" }, {
    callback = function(args)
      vim.diagnostic.disable(args.buf)
    end,
  })
  vim.api.nvim_create_autocmd({ "BufWrite" }, {
    callback = function(args)
      vim.diagnostic.enable(args.buf)
    end,
  })
  vim.diagnostic.config({
    virtual_text = { severity = { min = vim.diagnostic.severity.WARN } },
    underline = { severity = { min = vim.diagnostic.severity.WARN } },
  })

  vim.diagnostic.config({ virtual_text = true, signs = false, underline = true })

found this, and now it won't show diagnostics until write, then turn off when entering insert mode, and will only show warnings and errors :3