[lucb1e]

I've already described above what the browser's behavior is. That your browser works differently is good for you; I'm not using a Google product as my main browser. There are also other downsides that this other behavior does not fix, mentioned in sibling comments

[surajrmal]

This is not a chrome problem but an OS problem. Android does a much better job here by comparison. Desktop Linux is simply not well optimized for low RAM users.