Yes, you can do side missions after finishing the main story in Red Dead 2. There are still plenty of side activities and missions available for you to explore. This gives you the chance to further immerse yourself in the game world, complete any unfinished side quests, and discover new things you might have missed during the main story run.
Sure. In Red Dead 2, once you've completed the main story, side missions remain accessible. It's a great aspect of the game as it allows for extended gameplay. You can go back to different areas and interact with various characters to pick up side missions. Some of these side missions can provide additional backstory, unique rewards, or just more opportunities to roam around the beautifully crafted in - game world.
Definitely. Completing the main story in Red Dead 2 doesn't lock you out of side missions. There are numerous side missions scattered throughout the game world. After the story, you can revisit places like towns and camps where you'll find characters offering side missions. These missions can range from helping a farmer with his land troubles to assisting a bounty hunter. They add more depth and replayability to the game, allowing you to fully experience all that the game has to offer even after the main narrative is over.