I am going to enable zram + zswap using systemd-swap. Any advice is welcome.

I currently do not have any swap enabled.

It was totally worth it. I was able to open 50 Facebook tabs in chromium with one extra load in each page(used End key to load more content). Earlier after 30 tabs System became unresponsive and I had to force-reset my laptop. This time after 50 tabs System was fully responsive as I was able to take screenshots without any problems.

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Can't add multiple images. Will upload somewhere and share.

You should swap systemd for something else