It might be a chore, but it's worth seeing it all. Even for the parts you can't be bothered with, there's the occasional piece of info that, while not essential), is handy to know.
The timeline is all over the place. The original "movie" draws in two separate stories, and elements of each one are referenced in later seasons' episodes. Some just visually where you will see a ship(Or character), and you will think about what other episodes they were in. Like i say, nothing that would be the worst thing if you missed it, but i'd recommend watching every episode once when watching the show. On the next run through, you will know the ones you didn't like at all, and the ones that have cool parts you like, even in spite of the bad parts.
I'm not a huge fan of the clonetroopers themselves(And i thought the bad batch episodes were a waste of time), but not everyone will feel the same. Different stories will speak to different people.
You never know what episodes are going to appeal to you until you've evaluated them yourself.