Question about the Classic Block blockquote and the WordPress Quote Block

I recently posted a question about the Wordpress 6 Quote Block vs the Classic Block Blockquote: https://catchthemes.com/support-forum/topic/question-about-wordpress-6-compatibility Now that we're using the Classic Block Blockquote, as shown in the demo (https://catchthemes.com/demo/photofocus-pro/style-guide/), we noticed we're not able to change the attributes of the quote, namely the font size.  I believe we used to be able to do that with the quote we were using before (I can't determine what that is right now, unfortunately.   In any event, with the Classic Block Blockquote, should we be able to change the characteristics of the quote via UI settings or must we use custom CSS for that? Thanks in advance!