[Fire HD 8 and HD 10 Android Development] maven33:
Thanks.

I tested your list with a few more apps, it is not causing any problem.

Here is another list https://xdaforums.com/t/guide-almost-completely-debloat-fire-hd-10-2017.3919151/

As long as I can reset everything with a factory reset, I dared to do more.

List with "pm list packages -d"

pm disable-user --user 0 amazon.speech.sim
pm disable-user --user 0 amazon.speech.wakewordservice
pm disable-user --user 0 com.amazon.ags.app
pm disable-user --user 0 com.amazon.alexa.multimodal.gemini
pm disable-user --user 0 com.amazon.alexa.youtube.app
pm disable-user --user 0 com.amazon.avod
pm disable-user --user 0 com.amazon.bioscope
pm disable-user --user 0 com.amazon.cardinal
pm disable-user --user 0 com.amazon.cloud9
pm disable-user --user 0 com.amazon.cloud9.contentservice
pm disable-user --user 0 com.amazon.comms.kids
pm disable-user --user 0 com.amazon.csapp
pm disable-user --user 0 com.amazon.dee.app
pm disable-user --user 0 com.amazon.device.software.ota
pm disable-user --user 0 com.amazon.device.software.ota.override
pm disable-user --user 0 com.amazon.dp.contacts
pm disable-user --user 0 com.amazon.dp.fbcontacts
pm disable-user --user 0 com.amazon.firelauncher
pm disable-user --user 0 com.amazon.geo.client.maps
pm disable-user --user 0 com.amazon.geo.mapsv2.services
pm disable-user --user 0 com.amazon.iris
pm disable-user --user 0 com.amazon.kindle
pm disable-user --user 0 com.amazon.kindle.kso
pm disable-user --user 0 com.amazon.kindle.otter.oobe
pm disable-user --user 0 com.amazon.kindle.otter.oobe.forced.ota
pm disable-user --user 0 com.amazon.kindle.personal_video
pm disable-user --user 0 com.amazon.kindle.unifiedSearch
pm disable-user --user 0 com.amazon.knight.blink
pm disable-user --user 0 com.amazon.mp3
pm disable-user --user 0 com.amazon.ods.kindleconnect
pm disable-user --user 0 com.amazon.photos
pm disable-user --user 0 com.amazon.photos.importer
pm disable-user --user 0 com.amazon.redstone
pm disable-user --user 0 com.amazon.settings.systemupdates
pm disable-user --user 0 com.amazon.smartgenie
pm disable-user --user 0 com.amazon.speechui
pm disable-user --user 0 com.amazon.tabletsubscriptions
pm disable-user --user 0 com.amazon.tahoe
pm disable-user --user 0 com.amazon.venezia
pm disable-user --user 0 com.amazon.weather
pm disable-user --user 0 com.amazon.webapp
pm disable-user --user 0 com.amazon.windowshop
pm disable-user --user 0 com.amazon.zico
pm disable-user --user 0 com.android.calculator2
pm disable-user --user 0 com.android.calendar
pm disable-user --user 0 com.android.camera2
pm disable-user --user 0 com.android.contacts
pm disable-user --user 0 com.android.deskclock
pm disable-user --user 0 com.android.email
pm disable-user --user 0 com.android.music
pm disable-user --user 0 com.android.musicfx
pm disable-user --user 0 com.android.protips
pm disable-user --user 0 com.android.quicksearchbox
pm disable-user --user 0 com.audible.application.kindle
pm disable-user --user 0 com.goodreads.kindle
pm disable-user --user 0 com.kingsoft.office.amz
pm disable-user --user 0 jp.co.omronsoft.iwnnime.languagepack.kokr_az
pm disable-user --user 0 jp.co.omronsoft.iwnnime.languagepack.zhcn_az
pm disable-user --user 0 jp.co.omronsoft.iwnnime.languagepack.zhtw_az
pm disable-user --user 0 jp.co.omronsoft.iwnnime.mlaz

So far there is no problem, even after a device restart. Of course only if services are not used.

Update: Tested with fire 8 v2020 and fire 10 v2021.

Wow, something that caused a lot of DNS requests seems to be deactivated. Since the deactivation, there are no high spikes in my local DNS query log when the device is active.