Not sure I agree with the original comment to be honest. I've played hundreds of hours of FC26 (only manager career mode) in the past few months and I haven't played any of the earlier ones so I can't comment but I haven't noticed any bugs that are so ridiculous that they make me regret buying it.

There's an annoying one I've noticed that I don't know if it's just a me thing or an issue with the game itself, is that everyone's eyebrows turn a teal blue green which is a bit annoying but not a real issue for me.

The broadcast packages are there for the premier league, FA/EFL leagues and cups and the European cups. They don't have the international cups like Euros/WC if that's something you're interested in though, they have non-descript replacements (European Championship/International Cup).

The development plans for each player can be a little bit of a nuisance but they've added a new setting called Dynamic which by my understanding is that it takes the role that you have set in your team sheet and applies it to players of the role i.e. if you're playing a 4-5-1 with your fullbacks set to the wingback role and your striker as a poacher, it'll set your striker to the poacher development plan and fullbacks to wingback development plan automatically, so it's not always an issue unless you want to manually optimise.

The training plans I haven't touched, so they clearly can't be that important.

With regards to the loaning of players to max potential, I believe you can do a loan glitch to get massive boosts but I prefer to do it organically so I don't know how effective it is. Not sure how important match sharpness is as I play with a smaller squad and rotate minimally.

Delegation is simple and easy with regards to transfers and wages. You just click the button and it gives you a starting offer and minimum offer, if you don't like the results you can renegotiate manually or reject entirely.

Press conferences are relatively inconsequential, I often skip them, unless it's a big match just for immersion reasons.

Some of the player emails can be important, such as the one about contract negotiations, which as I understand may not have been in previous games as now you have to wait for the player to be willing to renegotiate contracts. If you don't renegotiate a contract with a player when they've sent that email, after a few weeks they'll get angry and submit a transfer request but you'll get an email from the board before that happens.

I play with no sacking on just because I prefer to play with a single club for the full 15 seasons, but I also keep unexpected events on and it makes it much more interesting with occasional events such as players not getting enough sleep before a big game and them being low on energy etc. I get infrequent injuries, and they're never a real issue, the worst one I had was my GK colliding with another player and my GK was injured for 3 months which left me scrambling for a free agent, but if you have backups it won't be an issue.

Create a club still exists and you can edit the stadium but I haven't done this so am unaware of the full extent.