

Yes, that makes sense. Unfortunately, as far as I know, Mint doesn’t provide a list of obsolete or deprecated packages. Even the upstream Ubuntu release notes (https://discourse.ubuntu.com/t/ubuntu-24-04-lts-noble-numbat-release-notes/39890 for 24.04 / LM 22) don’t list removed packages.
What you can do after the upgrade is query for obsolete packages on your system using apt list ?obsolete
. It’s generally recommended to remove those.
How is this too long? I would consider it a reasonable amount of time to receive security updates on a computer.
I have a notebook that I bought in 2012. It can run Ubuntu LTS 24.04, which is supported until 2034, without issue. There is no indication that the next release will stop supporting this hardware. I don’t see why Microsoft couldn’t provide this.