Pre-installed apps supplied by the manufacturer or network are supposed to offer a benefit to you – but in the end, they usually turn out to be useless.
potentially valuable system resources, the addition of
bloatware to new Android phones is usually intended to
encourage you to use particular apps.
These might be by third-party developers that have paid for
the privilege of pre-installation, or by your device manufacturer
or network – in this case, the intention is probably to force
you into using a particular service.
How To Debloat Your Android Phone part2