I've only ever used Android phones and even installed custom roms and find them easy to navigate. I got rid of my Broadband a couple of years ago so my Phone is used all day as my Wi-Fi Hotspot Tethered to my Laptop/PC and TV
Some tips. On a Motorola press and hold in the power button for around 10 seconds plus from time to time. This is a ,"Soft Reboot" that clears the ram and caches. Keeps the phones slick.
If you use a normal ," Nav Bar " at the bottom at least once a day tap on the recent apps list and clear them all. This stops them clogging up the system.
On a PC run the free ,"Privazer " deep cleaner,
https://privazer.com/en/download.php
1st run can take a while so go off and do something else. After that it will clean much faster.
I partition my drives and try to keep my system drive small and use the free ,"Macrium Reflect"
https://www.majorgeeks.com/files/det...e_edition.html
to backup onto my 2nd partition and keep an image copy on an old drive just-in-case. My boot sequence gives me the option to use a backup image or start Windows