You can use Google Search Console to monitor and troubleshoot your XML sitemaps. The Sitemaps report in Search Console allows you to see when Googlebot accessed the sitemap, any errors that Google encountered when parsing your submitted sitemap, and your sitemap submission history¹.

Source: 
(1) Build and submit a sitemap - Google Developers. https://developers.google.com/search/docs/crawling-indexing/sitemaps/build-sitemap
(2) Manage your sitemaps using the Sitemaps report - Search Console Help. https://support.google.com/webmasters/answer/7451001?hl=en
(3) How To Use Search Console | Google Search Central | Documentation .... https://developers.google.com/search/docs/monitor-debug/search-console-start