From the video

Let's talk about Puka as your wide receiver too. This is the Battle of Los Angeles. Uh he's practiced in full all week, I believe. No injury designation... he's a wide receiver one on wide receiver one usage over his last four games... they're going to throw the ball to the flats to him really quickly repeatedly... they've allowed uh the third fewest fantasy points to wide receivers on 15 plus area passes.
STACKED’s take
WR1 usage in elite matchup; Chargers funnel passes underneath where Nakua excels.
Puka Nakua is WR1-on-WR1 usage over his last four games since the pre-hernia scare, putting him in the tier with JSN as one of the top two guys. He practiced in full all week with no injury designation. The Chargers defense structurally allows the third-fewest fantasy points to wide receivers on 15+ air passes but funnel passes underneath—exactly what Puka has been good at this year. The Rams are using three tight end sets to get Puka the ball on the flats quickly and repeatedly, playing into the Chargers' defensive structure. Derwin James is out (not practicing), removing middle-field congestion and improving Nakua's red zone opportunity. Removing DaVante Adams from the offense further concentrates red zone targets to Nakua. Rams team total of 26 points supports volume. Kyler Gordon: 'this is the Battle of Los Angeles.'
Puka NacuaWR · LARPlayer page — value, ADP, projections, and every insight