The Galaxy S20+ gets a meager repair score of 3 from iFixit

First, the OLED display is mounted directly to the frame without any additional support for rigidity, which makes it extremely easy to damage it when removing it. So, even if only the protective glass is cracked and the OLED panel itself is intact, you’re very likely to break it while repairing the other damage.
Second, the battery is glued to the back panel with excessive amounts of adhesive. Sure, no one wants parts moving around but it’s not like the battery has many places to go sandwiched between the phone’s front and back panels.
One the bright side, Samsung uses standard phillips-head screws, but that was only enough to bump the score to the aforementioned 3. Somewhat surprising, considering Samsung did such a good job with improving the repairability of its Galaxy Buds+ that got 7 out of 10.
Hopefully, Samsung will take note when designing the Galaxy Note 20 and will at least dial down the glue dispenser.