The FIDE Grand Swiss has a weaker field than was originally intended. First it moved, from the Isle of Man to Riga, and then because Covid is a problem there many leading players bowed out, including Alexander Grischuk, Richard Rapport, Shakhriyar Mamedyarov, Hikaru Nakamura, and Vidit Gujrathi. The top seed Fabiano Caruana is still playing, and other members of the super-elite are participating as well.
That includes the third seed, 2770-rated Alireza Firouzja, who is the only player to still have a perfect score after three rounds. With eight rounds to go, none of the contenders need to lose sleep over that fact, though if he can keep winning for a few more rounds Caruana et al will have cause to get a bit nervous. This isn't "just" another big tournament; it's a qualifier for the 2022 Candidates tournament. To refresh your memories, four spots are already committed: the loser of next month's World Championship match, Teimour Rajdabov as the FIDE nominee, and Jan-Krzysztof Duda and Sergey Karjakin as the top two finishers of this year's World Cup. (The remaining slots will go to the top two finishers in the 2022 FIDE Grand Prix, to be held between February and April of next year.)
I've annotated six games from the first three rounds, and will continue to present games from the event as it continues. (And readers, if a game especially catches your eye, please mention it in the comments.) Enjoy.