Hello,
Thank you for contacting Rank Math and bringing your concern to our attention.
You can easily install the Rank Math and move all your settings from Yoast to Rank Math easily with our Plugin.
Please follow the guide and you are good to go.
Guide Link:
https://rankmath.com/kb/migrate-from-rank-math-to-yoast/
There are no issues with the sitemap, you can exclude the sitemap from your cache plugin and you are good to go.
Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.
