If we are going by the numbers, then casual gaming on mobile phones and tablets is even higher.
> Mobile gaming generated USD 140.53 billion in 2025, accounting for 48.50% of the video game market share. Console revenue followed at USD 56.2 billion, slightly ahead of PC’s USD 46.3 billion. Cloud-gaming services are the fastest-rising category; the segment’s video game market size is projected to reach USD 24.68 billion by 2029 on a 26.25% CAGR. Wider 5G rollout and aggressive platform bundling are converting non-traditional gamers who do not own dedicated hardware. Source: https://www.mordorintelligence.com/industry-reports/video-ga...
I think PC gaming has some advantage because it casts a huge net over a lot of factors: games big and small, lots of genres, lots of input types, ancient weak hardware to the latest extreme can all be viable, can be tinkered with, developers of all types can produce on it, shared with non-gaming usages. The only way I could see console claiming more of that is if it standardized something similar to a CD/DVD/BD player device, under a consortium and not 'owned' by a single company (or at least easier to license).