Searching for the Best OS for my 2015 13" MacBook Pro

Hi all!

‎

I just bought my own 2015 13" MacBook Pro as my secondary MacBook.

‎

I know a lot of people still use this machine as their main MacBook, that is why I wanted to ask:

Which is the best macOS version to run on this MacBook (mine is the base i5, 8gb RAM)?

‎

‎I currently have Monterey installed on it, but I have experience using OCLP with my other MacBooks.

When I think of the "best" OS, my main points are: overall responsiveness, fluidness, battery life, stability.

‎

I would really love to hear you experience with this model and OCLP.

Thanks in advance!