Menu bar-File-Page Setup-Layout-Header and Footer-Different Homepages (check)-OK.

Menu bar-Header and Header-Place the cursor in the footer of the second page-Click Format Page Number-Page Number-Starting Page Number: 0- OK.

Perfect:

Place the cursor at the top of the second page-Menu Bar-Insert-Delimiter-section break Type: Next Page (Click)-OK.

Menu bar-header and header-cursor on the footer of the second page-click "Link to previous section" on the header and footer toolbar to make "Same as previous section" disappear in the upper right corner of the footer.

Click Format Page Number-Page Number Arrangement-Start Page Number: 1- OK on the header and footer toolbar.

In this way, you can delete the page number on the first page.