Allow this oldfag to steer you into alternatives.
While Blizzard was succumbing to the infestation it now has, EA, for all its problems, did something right: Embraced its fan community for Command and Conquer.
It gave the fans the source code to the early games, which they used to mod the shit out of them, make maps, and in many cases, take the games apart and put them back together again to make them work on new systems. Want to play any of the first like nine C&C games on a modern rig? The fan community can make it happen. Want to try fun spinoffs like C&C Renegade? Don't worry, the fan communities run the servers now. Want to try
a fanmade free game that combines Red Alert 1 with Tiberium Dawn using Tiberium Sun's engine, and creates a fucking amazing gameplay experience? Done.
About 2 years ago, EA made a very quiet announcement that it was ensuring all further C&C games had dedicated end-of-life plans with full intention to allow them to be turned over to the community when their time was up with pre-set-up support for fan servers, LAN support, and so on. They got as much of Command and Conquer 1 and 3's staff back together as possible for the remaster, including Joseph David Kucan, Kane himself. About the only guy they couldn't get was the actor for Shepard, who passed away in 2019. It was the first sign that EA was getting ready to enter the final stage of the EA cycle, where it finally starts to get its shit together again, but the biggest sign of better on the horizon came from the announcement that EA was specifically working with CNCnet on the remasters, and announced that it was not going to file any copyright shit against fangames of any kind.
This is a fucking fantastic thing. These are turbonerds who took the game apart and put it back together so many times that they know individual unit speeds and turning times from memory. Many have been around since the original games released back in the 90s. EA knows that if it wants to ever make this franchise sing again it's going to need the turbonerds that made it good in the first place.
This is the same mindset that gave birth to Command and Conquer 3, which is one of the best RTS games
ever made, so there's a lot of potential here. Conversely if you want to go back to the past and see where RTS games began, fire up Dosbox and play Dune 2. It's clunky, slow, and and chunky as hell but the gameplay holds up generations later.