Handle Google-Apps Updates Solved

Hey Guys, I just want to know how you handle Updates of Chrome, Playservices, ... in your environment? We're using many Zebra TC20 for internal use only. We have a few Apps which only needs internal access to our Servers, so the Zebras are configured with a Proxy for internet access, just for a quick view of prices, Information etc. Unfortunately the Google-Apps don't use this Proxy (configured with Zebra MX) for updateing themselves. That means we're still using Chrome, Play, Mail, ... Versions from the Zebra OS a few Months ago. A newer OS-Update doesn't contains newer App Versions of e.g. Chrome so we're now got stuck. Is there any chance to Update all this Google-Stuff by apk or do I have to change the WIFI so the Devices get unlimited Internet-Access? for example: The Chrome Version installed within the Nougat or Oreo OS of our Devices is 69.0.x. We just want to bring out an TWA Wrapper App which needs min. Chrome 74.x. I don't know at the moment how to Update Chrome to get this working.  Many Thanks and kind regards