Hi,
Thank you for your feedback. With HikaShop 6.4.0, we've completely reworked the way the CSS grid system works to use modern things. And there is a missing piece since then to handle the table switcher toggle properly.
I've looked into it following your feedback and added a patch for it.
Download the install package of HikaShop on our website. Then, install it on your website and you'll get the patch.
Then, clear your website's cache in your browser with a hard refresh of the page, clear your website's cache in your Joomla backend if your have any, and it should then work properly.