Is it necessary to manage charging as with iphone?

That computer is a battery-CAPABLE device. It is not optimized as a battery-operated device. (It is NOT an iPhone.)

Your computer performs best when connected to AC power. It can use the full output of the Power Adapter AND when doing especially challenging work will also freely "borrow" power from the battery. In some cases, even with the power adapter connected, the charged state may decline during stressful work.

When used only on battery, your computer has no extra cushion of power, and may perform more slowly. However, for ordinary non-stressful tasks this may not be objectionable (possibly not even noticeable.)

In general, you should ALWAYS connect AC power when it is possible to do so, and only run on batteries (which could be somewhat slower) when no AC sources are at hand. Your Mac will NEVER over-charge.

See this, the MacOS does it for you:

About battery health management in Mac notebooks - Apple Support

Battery Health Management is only available with newer Macs and MacOS.

If you have an older Mac, I would just connect it to the charger whenever possible. There is no end of opinions about this, and some will argue that you should charge it to 60% or 80% and leave it there most of the time to prolong battery life. I have never bothered with that myself.