Last week, just before the MLB/MLBPA agreement was made, Apple revealed at one of its public events that they had reached a deal to stream some MLB games on Apple TV+.
From Apple’s press release, quoted in that BCB article link:
Apple and Major League Baseball (MLB) today announced “Friday Night Baseball,” a weekly doubleheader with live pre- and postgame shows that will be available to fans in eight countries exclusively on Apple TV+ as soon as the regular season begins.
In addition to “Friday Night Baseball,” fans in the US will be able to enjoy “MLB Big Inning,” a live show featuring highlights and look-ins airing every weeknight during the regular season.