i was unable to boot after an update. may be i accidentally quit in between. i will post the full aftermath … later.
so it was a good opportunity to install EOS stock Qtile and selected no desktop and saved the EOS qtile github repos. after reboot completed the remaining part of the manual install. copied few of my shortcut personal preferences, from old config. everything seems to be fine, until i noticed that there is no low battery warning and hence laptop shutsdown when power is low.
also i could not see any battery indication. is this normal and i need to install my own battery widgets ?