2. UEFA rules prohibit ownership of more than 49.9% in more than one club in UEFA competition (Champions League and Europa League). This was challenged in the European courts and held up by the courts at a 49.9% limit.
And if you'd done the research you'd know what the consequences of that rule are.
UEFA RULES
Article 5 of regulations in each UEFA competition — the Champions League, Europa League and Europa Conference League — is about integrity and multi-club ownership.
Clubs cannot hold shares or have management control in another club taking part in a UEFA competition, nor can individuals and legal entities have ownership or management control over more than one club.
UEFA requires the club that qualified for “the most prestigious” competition to take its place while the other is excluded. The next tiebreaker is which club finished higher in its domestic league.
That rule says clubs owned by the same person or group can't compete in the same competition. The UEFA competitons it is referring to are the Champions League, Europa League, and Europa Conference. It says nothing about you not being able to own multiple European clubs.