For app compatibility you’ll be fine for 6 years + how many years of OS updates your model got. For security just don’t install app from outside the play Store, and inside the Play Store don’t use unpopular apps.
I just remind myself of how many times I dropped my phone because I forgot about the wire
“AccuBattery fixes this”
I got a charger in the box (and a case) with my M54 but they sent a 15W USB-A charger with a USB-A cable. It was useless to me since it was taking 3 to 4 hours to charge the phone (due to heat management) and I already had the same charge from my previous phone.
I tried using other 33W chargers from Motorola and Xiaomi (both USB-A) but they would never go above 12W. The cable didn’t matter.
I had to buy the original 25W charger, and a USB-C cable, form Samsung to enable the super fast charging. The charging experience was so bad that I kept using my old phone for almost a entire month until I received this charger and got the promised charging speed.