This match is indeed like a final match because this match also determines who will get a bigger chance in the title race. Yes, even though they lose 1 match, they cannot widen the gap and the difference in points is still relatively small, but still the points they achieve are very meaningful in the title hunt. , maybe Liverpool will have more advantages in this match because they will beat Brighton and be at the top of the standings again if Arsenal lose.
The match will be a very crucial match for both teams and maybe even the result of the game will also affect Liverpool's journey in the English League in the championship competition, the two teams have so far only separated one points, while Liverpool is only difference goal from Arsenal so that it makes them occupy the number 2 position at this time in the standings, the tight competition that occurs at this time of course makes the match will greatly affect the three teams, That's why I agree with you when I say Manchester City vs Arsenal will be the final, although it doesn't decide who will championship, but I think those who win the game will certainly be one step closer to the trophy this season.
Liverpool will indirectly benefit from Manchester City and Arsenal, but I think Liverpool may not get any effect if they lose to Brighton, to be honest, every time I see Liverpool vs Brighton it becomes a difficult game for Liverpool and that's why I think Liverpool must play all out in that game to get the win.