I tried to use a google item, think sheets years ago with wayfarer and it worked just fine. Pretty sure it was sheets, but I'm an old guy and can't remember what I have for breakfast :). Jacek is certainly interactive and helpful if you run into issues.
I certainly would welcome to hear if anyone uses google apps daily. I don't care for these big companies frankly , so I use PolyOrganizer, Iris, PageStream, LibreOffice, and TurboCalc. The cloud is over rated for me anyways.
The X5000 is a real nice system, but you may wish to pickup a PowerMac G5 (2.7GHz PCIx or 2.5 GHz PCIe) system as well. Having a fast clock and Altivec make a very noticeable impact on how fast MorphOS performs. You will be very pleasantly surprised. Wayfarer will use everything you throw at it, besides for either system you can get from free to $250.
I have used wayfarer for accessing containers on my NAS, again works perfectly but any amount of fuel you add to the fire will help make it a better experience.
Lastly there are tweaks you can do, such as use the fastest SSD or M2 you can, turn on Caching, play with settings. These all will make incremental improvements. Wayfarer for 80% of the websites I go to is just as fast as my PC and works perfectly, there will be some that require the jeopardy music to get through it. Wayfarer being on the latest webkits and being as capable as it is, is truly a marvel in AmigaLand...
I enjoyed watching your videos, nice job btw! Your 4.1 desktop, looks really nice. Hope to see MorphOS vids in the future.