Every time I get a Chrome update it uses more RAM.
Besides open tabs, in Chrome , every extension gets its own process.
It's convenient if one tab or process crashes it won't affect the others but the result lead to higher RAM usage.
There are some extension and webpages that uses too much memory, you could check those and see if you have one leaking memory.
You could lower Chrome RAM usage by disabling Chrome’s prerendering, but it will make pages to load a bit slower.
I will get concerned when the system slows down because of high memory usage.
If you're not using the RAM for other tasks, you should not be concerned, RAM is useless if is not used.
When I use other apps that require RAM then I close most tabs.
See image below.
I...