Or is it private?
I've heard good things about this extension (but use at your own risk, I don't install extensions besides uBlock myself):
https://chrome.google.com/webstore/detail/tab-suspender/fiab...
https://synth.app/
You will then have to restart Chrome and enable the feature in settings.
more details here: https://bgr.com/tech/how-to-use-chromes-new-energy-and-memor...
I've heard good things about this extension (but use at your own risk, I don't install extensions besides uBlock myself):
https://chrome.google.com/webstore/detail/tab-suspender/fiab...