How do I create an archive page as a <table> including metadata?

I'm really struggling getting this seemingly simple thing to work. I have a list of vendors as a CPT. They have metadata like contact name and last invoice date. I'd like to have the archive page for these vendors show a simple table:

I can not seem to figure out how to get metadata into this. I'm also struggling with getting Wordpress to stop inserting h2s, but at least I can style around that!

!-- wp:template-part {slug:header, tagName:header} /--

section class=wp-block-query inner-width content
    table
    !-- wp:query {query:{perPage:1000,pages:0,offset:0,postType:vendor,categoryIds:[],tagIds:[],order:asc,orderBy:title,author:,search:,exclude:[],sticky:,inherit:true},tagName:main,align:wide,layout:{inherit:false}} --
        
        !-- wp:post-template {align:wide} --
        tr
            td!-- wp:post-title {isLink:true} /--/td
            tdContact/td
            tdLast Invoice Date/td
        /tr
        !-- /wp:post-template --
    !-- /wp:query --
    /table
/section

!-- wp:template-part {slug:footer, tagName:footer} /-→

How can I make tdContact/td the actual contact's name (meta data name contact)? I've seen other solutions using PHP, but when I do that on the HTML page it doesn't work. Maybe I followed the wrong guide?