I don't run Ubuntu. If I did, your question has convinced me I would be happiest on an LTS version. 5 years of not changing much is more in line with my level of interest in puttering around my OS settings than every 9 months.

https://ubuntu.com/about/release-cycle

The 19.10 bump was to get some fresh base libraries to build something as I recall. I think it might have for Remmina. Otherwise totally agree with you, LTS is always preferable