First, the positive side:
The game is 100% about driving. No more gymkhana, driving school, destruction races or "impress the audience to get fans and xp" challenges like in the previous games.
The non rally races are actually lot of fun
The game run well on Steam deck
That's all.

Now for the negative side:
The rally driving is "fine" but it's a downgrade compared to the previous Dirt games (especially Dirt 3).
The game looks outdated, like a 2010 game.
it reminds me a bit of the earlier WRC games, something made by a rather small studio with limited budget. Not by a top tier racing game studio like Codemasters...
There is something off with the car physics', most cars feels too light, almost like if you're driving a car made off cardboards
The driving feels particularly weird during rainy races.
The AI is terrible: some races you drive really well but end up in 4th placez and some races you drive like crap, leave the track for 30 secondbut still end in 1st place with 1 minute 30 seconds ahead. It makes no sense.
The copilot advises come way too early, sometimes even before you have completed the previous one.
But the biggest flaw of this game is how repetitive and stretched it is.
The career mode takes about 40-50 hours to complete. It wouldn't be a problem if the game has tons of things to do (like a Forza horizon) except that you have to drive the same races over and over again, only slightly modified using generated randomiser.
After the 30 hours mark, I gave up.
Devs, if you want to make your game last longer, have some fun challenges like run races backward for example. But stretching the game driving the same races over and over it's just boring ....

Remember when Dirt 4 was hated? Now it aged better than Dirt 3 and Dirt 5 is borderline awful. Also very easy to run which is gud

so fun :3