Here's a circumstance:

I've had an RTX 3070 on order since December. And I was willing to spend $60 for one recent game on Stadia, because my 8 year old GTX 760 wasn't going to cut it.

Perhaps Stadia as service is doomed. But I got 120 hours out of a game, that I otherwise wouldn't have had access to over the past 5 months. And the experience was fine. Stadia was probably the most friction free option, with fewer bugs than consoles or PCs faced. The compression artifacts in very dark scenes were more troublesome than the input latency in a single player game. I continued playing less graphically demanding games locally.

2021 may become Stadia's best year for revenues. There are millions of laptop/tablet users that don't really want to spend $500 for a console or $1200 for a comparable PC. On Steam surveys, there's no shortage of PCs that aren't up to playing the last 2-3 years of single player games. This will only grow worse with games targeting current gen consoles. And have you seen what scalpers want for GPUs?