How to turn off previewer in picker by default?

[tknightz]

I don't want to see previewer window when search for files, but still want to keep it in git status or grep search...etc. How to achieve that?

And one issue with picker previewer I think, currently I have an autocmd to jump into last position :h restore-cursor, but seems like picker previewer resets the position to the top of file, so my autocmd didn't work and other plugins like nvim-lastplace or remember.nvim either.

Autocmd jump to last position:

vim.api.nvim_create_autocmd("BufReadPost", {
  group = vim.api.nvim_create_augroup("auto-last-position", { clear = true }),
  callback = function(args)
    local position = vim.api.nvim_buf_get_mark(args.buf, [["]])
    local winid = vim.fn.bufwinid(args.buf)
    pcall(vim.api.nvim_win_set_cursor, winid, position)
  end,
  desc = "Auto jump to last position",
})

[folke]

opts.picker.sources.files.layout.preview = false