This will largely depend on how you intend to use your machine. A rolling release distro benefits users who need the latest software updates. For example, if you are writing a program that you want to work with the latest software, you'll have to use a rolling release distribution.
On the other hand, a Long-Term Support (LTS) distro tends to cater to users who want a stable computing experience and don't want to constantly update their system. This could either be a family relative who is not familiar with computers or a security-conscious user who wants an "air-gapped" machine.