The product, "compute pixels on powerful machine -> render on thin client", makes much more sense if you don't try to monetize by being a cloud landlord, but you let the users own that powerful machine, make money through hardware, and help them with the software, make money through support, no subscriptions, no rent-seeking.
Think at the level of a family: 2 parents, 2 children which means: 4 smartphones, 2÷3 laptops, 1÷2 desktops, 1÷2 tablets, each of them $1,000+ which means around $8,000+ and $11,000+, replaced every 2÷4 years. Instead of 8÷11 screens, each with it's own beefy CPU/GPU/RAM, you could have 8÷11 thin clients (at the most $200 each, for fancy cameras and larger batteries) and a powerful machine, somewhere between $5,000 and $10,000, dual CPU, dual GPU, etc., which can last 10+ years (thinking of all those refurbished servers with 2012 Xeon E5-2620s which work great even today, and have no reason not to work perfectly fine even in 2032).
Bandwidth/latency is an issue but as we are advancing in 5G+ technologies it's just a wait game.
Long live thin clients where the user owns the upgradeable fat server rendering the thin client!