Overall, all EPL teams that will compete in European competitions, be it the Champions League, Europa League and UEFA Conference League, will maximize all their potential budgets to improve the squad. The goal is apart from the championship trophy, the club will get a bonus depending on how far they have achieved in the competition. Then the option to bring in new players is a must and will automatically pay off according to the achievements achieved.
In addition, funding from club owners to bring in new players also plays a very important role. Sometimes some clubs seem reluctant and very frugal towards their expenses. This of course will automatically give the impression that such model clubs look cold in the transfer window.
The same thing will certainly be done by teams outside the EPL, they will continue to try to improve their quality in order to win a trophy at the end of the competition. They will continue to try to live up to expectations after a long struggle, bringing in several new players can be of great benefit in improving team performance. This season Manchester United and Arsenal have been very active in the transfer market after confirming qualification for the Champions League, Liverpool have also made a major overhaul after successfully finishing in 5th place.
I'm not sure Brighton can go further in the Europa Ligue to accompany Liverpool, Brighton still needs to make big changes to compete with other teams. Meanwhile, Aston Villa, which has qualified for the Uefa Conference League, will face a big challenge there, they need a more solid squad depth to compete in this competition. Big funds need to be prepared to increase the team's strength to maintain the chance of winning the championship. Teams that don't dare to spend capital will find it difficult to go further due to being unable to compete with their competitors from different leagues.