Honestly Liverpool is quite lucky for being injury-free particularly to their key players except Kanote who was out for some few weeks aside him Liverpool was intact couple with the blistering form of Mo.Sallah really pushed the club up, however I never expect Chelsea to have complain on injuries having considered the club depth in erm of reserve players infact Muressca has squad he to play Conference league matches thus I think he has any excuses and complains, while Arsenal had injury worries too which had really affected their team performance firstly when Odegaard was on injury their struggled now Saka same problem and Man City without Rodri has been a big problem for the team.
however, the absence of players who are always the mainstay and even the center of the team's game certainly affects the team's play. but they are big teams in the Premier League. they have substitute players who can also at least be relied on to fill the weaknesses left behind. in a team situation like that, I think the role of the coach's tactics is very important. all teams competing for the UCL, Europa League, and Conference League have a tight schedule. Liverpool may be in fairly good condition and Man City may be the most depressed due to their injured players.
On all the teams that I know of this season Liverpool are currently the most stable of all especially when it comes to the premier league and they have also maintained such form to the champions league and one can even say that Liverpool are looking like most favorite to even win this years champions league but although a lot of upset might happen in the semi and quarter finals seeing that some of the big teams might kick up their form.