Convincing yourself that your local birds aren't sufficiently interesting is a great way to rationalize avoiding getting into birding. (Source: I am trying to learn to distinguish all the pigeons that constitute most of the bird population near me. They're great.)
And it is a classic for folks with limited mobility:
https://www.nytimes.com/wirecutter/blog/birding-window-get-s...
There's a reason why it has a reputation as a great retiree hobby - it's "go sit on a bench and pay attention" not "first, purchase a mountain bike of adequate spec...".
I think going to benches is fine but takes non-negligible effort. As for looking out my window from home... Maybe? It really doesn't seem like there are enough birds visible to make that worth it.
The person in that article saw ten species in two months? This doesn't sound like a situation where your activity is listed as "birdwatching", it sounds like you spend a minute on it every once in a while.
And if I consider binoculars and a feeder, that's on the same price tier as VR.