I had issues like that a few years back on memory starved Chromebooks, in my case the biggest savior was the Great Suspender/Discarder extension as I hoard tabs

I had issues like that a few years back on memory starved Chromebooks, in my case the biggest savior was the Great Suspender/Discarder extension as I hoard tabs, otherwise the Android subsystem on a 4GB RAM machine is stretching it thin.