Overseeing the deployment and compliance of software updates across managed devices using Intune
You've confused deprecation and end of life/end of service.
WSUS will continue to work until at least 2035 and likely beyond, it just means that it's 'feature complete' and there will be no new features or development besides security updates to WSUS.
Yes, that's right, WSUS IS STILL SECURITY PATCHED - see the latest patch information on October 23rd's OOB release - https://www.ajtek.ca/blog/wsus-vulnerability-patched-october-23rd/
Microsoft has created fear, uncertanty, and doubt (FUD) around this to scare people into paying for Microsoft's paid systems (hotpatch, AUM, Intune). Even their paid flagship patching product Microsoft Configuration Manager still uses WSUS under the hood.
Spend some time reading the guides and blog entries on our site and you'll see that WSUS is not dead, just Microsoft setting the scene for an eventual end of WSUS in the long-term future.