I cannot understand why Ferrari pitted Vettel so early - yes he was slower than Hamilton but I think on a similar strategy he may have held Lewis off.
Ferrari feared the undercut from Merc, in fact if Lewis had pitted ahead of Vettel he would easily have cleared him by the next lap. Obviously that was not necessarily known for certain at the time of Vettel's stop, but Merc pressed home the point by coming out into the pitlane before Ferrari on that lap - Ferrari blinked and took the bait. Not sure there was anyway in that race that Seb could have stayed ahead of Lewis, there was the undercut possibility or the eventual route of having fresher tyres later in race.
Just a shame really that Giovanazzi's off brought yellows out in the build up section for a last gasp lunge by Lewis on Charles at the final chicane.
Summing up the race though I find that unfortunately DRS played far too big a part in the race. there's the train that formed behind KMag, doomed by the Ferrari engines grunt and followers having DRS cancelling each other for a dozen laps, when they did then get through it was pretty much one each lap after for the next 8 or 10.
Then we get the silliness on the last lap, Perez knows he can't resist DRS down Kemmel so he tries to engineer a passing opportunity for rookie Albon just before Eau Rouge to try to retake 5th place on the straight. Good to see young Alexander didn't fall for it.
Good for Charles to get First win but not sure he was the best on the day. Toss up between Lewis, Lando, Albon and Checho for my best of the race. - Have to give it to Albon for the entertainment he provided passing cars at places other than Kemmel on his 2nd stint on softs.
Have to feel for Danny Ric, qualified well, took grid penalty only to be biffed by Stroll at first turn due entirely to Max's big gaffe of going for a non existent gap. The early pit stop probably doomed him to finish outside points, however if his team had pitted him 15 or so from the end he may well have been able to mount a charge a la Albon for a point or two.