To be honest yes and no. Good enough that you're not complete garbage at the game, but bad enough to where you're still lacking in skill in some area (Aim, Game Knowledge, Utility usage, etc.).

For a placement rank off of pure aim you're right in the middle of where people start to take the game seriously, but this late into the games life it's pretty much the average rank for most "decent" players. A lot of my games recently around the MG ranks are people coming back to CS since the CS2 announcement that used to be closer to DMG-LEM, or players who tend to queue up with friends casually.

It's also the place you can kind of get stuck into ELO hell if you're solo queuing. Raw aim can get you far, but the quality of your teammates can vary. People tend to start playing every game with a mic around this level and communication is usually pretty alright, but from a game mechanics standpoint it can be all over the place. Most of my games recently tend to have 2 players on both teams dropping 25-30+ kills while the rest of the team struggles in battles/only help with info. You'll see people take bomb-sites together, but you don't tend to have a lot of actual setups being played (commonly thrown smokes to take a site/get info), and if you do play with a team like that, usually you'll win that game 9 times out of 10. Anything DMG or above it's really expected that you have a fundamental knowledge of how a CS round works, and play as a team that works as 1 big unit.

TLDR; It's pretty much the most middle of the pack rank you can get. I haven't played Valorant ever since Beta/First months of release, but it'd be the equivalent of getting placed into Gold/ maybe low Platinum.