There was an update for steam client which was downloaded and installed. When I launched the client after that Store, Community and Profile tabs are blank/black with the loading icon/GIF going round but not loading anything.
I tried deleting the cache through settings and also emptying the htmlcache folder in steam folder to no avail.
I launched Steam now, there was an update download. It asked to relaunch steam and after extracting and installing the package I logged into the client. It seems to have been fixed and is working now. I guess many users might have had the same issue and that's why they rolled out another update/fix soon.
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