It's a big committment, might sound daft but it's almost like having a child, needs fed, watered, exercised & given attention.
It's not only work that needs thinking about but also if you go out for the day, all day somewhere or holidays too.
We have had rescue Greyhounds over the years which are fairly low maintenance & easy going dogs, they like to sleep

but still need you to be there, as dogs can suffer from separation anxiety.
Being on their own a lot might mean they chew up the house, do the toilet etc.
If you can find a work-a-round which suits then go for it as pets are very rewarding & great for our mental health too.
Good luck