Control two bulbs in same light fitting using OK Google?

Can I put two bulbs in one ceiling light and control them both using Google Home and voice commands? I live in the UK if that makes any difference.

Sure, you can group the two bulbs from GH, and control it with group name.

I too am new to Yeelight. I set up my ceiling light (4 white Tunables) one by one and named them Light 1, Light 2, Light 3 and Light 4 and connected them to Google Home.
So when I say “Hey Google… Turn On Light 1” it turns on one light. When I say “Hey Google…Turn on Light 1 and Light 2” it turns on two lights and so on.
So in answer to your question, yes you can control individual lights with Google home, provided you have set up your Yeelight one by one.
Hope this helps.