Watched Solo this past weekend. I went in with an open mind.
The first 1/3 was pretty decent, though I never could see Alden as a young Han Solo ; he came off more like a poor man's Leonardo DiCaprio.
The movie got progressively worse for the final 2/3s ---- hard to say exactly when, but just so many things just tanked the movie in my eyes, from cringeworthy moments, hammy dialogue, extremely forced fan service/references, terrible sets (like that outdoor set on Kessel) etc.
The cardinal sin that the movie created, IMO, was the introduction and focus on an extremely serious love interest for Han for this movie. I'm sure plenty will disagree, but to this life-long Star Wars fan, this felt like a betrayal of Han's early pre-OT character and also something that, when made canon, cheapens the character development that Han is intended to make throughout the OT story arc, and cheapens the impact of Han and Leia's relationship and development in the OT.
There's no need for Han to have an obsessive love interest prior to the OT, and frankly it makes no sense. It goes completely against the character that we're introduced to in the cantina in Episode IV. Han is a loner and rogue, whose only serious interest is in getting ahead (e.g. money). How does it make sense that just a few years prior (even 5-10) that he would be this idealistic, star-struck guy obsessing over finding the true love that he was tragically separated from?
Saving Han's budding love interest for Leia and Leia alone accentuates the uniqueness and special nature of it. Of all the people in the galaxy, Leia was the one person to start to crack through to him regarding his selfish nature ("If money is all that you desire, then THAT's what you'll receive............"). She and Luke were the ones that got him to second guess his decision to just bail on the Yavin IV assault, pack up the money and run. He was ready to go on his merry way until they appealed to him with their vocal displeasure at his apparent ambivalence and selfishness. Everything else from that point on is self explanation, through ESB and ROTJ as Han's character develops and his unique love for Leia blindsides him and steers him on a new path.
The Solo movie took a dump on all of this. That aspect alone is what took the movie from B-grade (probably one step up from AOTC) to F-grade never-should-have-been-made.
A Solo movie would have worked with many of the concepts within this film ---- just take out the love interest and have it focus on Han going through the academy, dropping out, meeting/saving Chewie, Kessel run etc. Love interest was not necessary, and not only bogged down the film and cheapened Solo's character, but it clashed irreconcilably with the OT.