Aimy Sitemap v34.0 does not require the Joomla! Backward Compatibility Plugin (B/C Plugin) to be active on Joomla! 5 anymore. Besides that it supports crawling of WebP images, improves suggested actions on broken links (PRO feature) and allows to exclude "priority" tags from an XML sitemap (PRO feature).
Aimy Sitemap now requires at least Joomla! v3.9.0.