Should be okay!
Depending on the breed/individual of course!
I’ve got a ~1 year old mixed breed (maybe pit? boxer? beagle? haha I just say she’s 100% adorable) , and she seems fine to spend the day alone. We still crate her because we only adopted her a few weeks ago, and we’re hoping to trust her with free range of the house soon.
I am a full time college student, and both my parents work, so she is home alone for variable amounts of time every day. Every morning before I leave, I take her on a walk for at least half an hour, usually 45min-hour, and when I get home we go outside and play for a bit.
She’s always very excited to see us when we get home, but she doesn’t cry when we put her in the crate (unless we’re still around the house- that drives her mad!). She is very people oriented but doesn’t seem to get separation anxiety, which is good, and on weekends we take her all sorts of fun places to tire her out!
So like most people have said, it’s doable depending on your level of commitment to exercise and also depending on the specific dog.