As other post says....no. Spotify regularly cannot find Chromecast devices from the PC app.
There are two work arounds, use your phone to find it then the PC can and then you switch device back to PC.
Or use google cast.
Several years on and still no proper fix.
The other thread linked to has been very dishonestly marked as cured, well that's a straight lie!
It really is about time this 5 year old fault was fixed.
What if you're using PC because your phone is out of action, opps cannot get PC to connect.
Google cast is not much help if the music is local! Yes you can use Home but do any other software companies say "Hey, we know it's a major bug but if you use someone else's software to kick its **bleep** it will then work".
Oh yes, I can see it now, I'm having problems with function X on my iOS device...no problem sir, just plug in WinOS to use it!!!!
Totally rediculous, we are paying for a fully functioning app, lets have it.