Absolutely - but I think it's a case by case basis as everybody's motivation is different. For some, its about getting better, getting those techniques down, expanding on repertoire. But you could argue, if there's no purpose to that, like no end goal, no gigs, what's the point.
It's interesting how there was a race where lots of musicians were doing online collaborations. They have quickly run out of steam. Why? Because the amount of effort compared to the reception they get for some, doesn't make it worth the effort. Are "likes" now the measure of success? All that work for 7 likes may not cut it for some.
Personally, I've been working on new skills - video, audio, AWS and Azure... and spending time relaxing with the other half whilst watching various tv series and films, currently appeals more than sitting for hours on my bass. A lot of my enjoyment came from the performance element and being with people. Remove that and the drive for me has waned substantially. I mispent my youth on techniques and all that sort of stuff... and most of them I never use anyway, so... apart from being party tricks that I can upload to the net to be ignored... what's the point?