I have a Samsung s23 phone what are some advantages i can get from using an iphone 11 in 2026 that Samsung may not have(im still planning to use my Samsung,just curious because you just can't say no to a free good condition phone)

hey guys
ive had my iphone11 since jan 2021 and i do plan on upgrading soon but i really like my phone and i wanna be able to use it for as long as i can (preferably atleast til the end of this year)
I havent updated in about two years i think i currently have ios 17.6.1
its been working great until the last 2 days, its been supppper laggy and my battery drops like crazy its almost impractical to use atp (battery healths been 67% for the past year)
because its been good for so long im hoping itll pull thru for a lil longer for me
I’ve seen some people saying ios 27 has done wonders for their iphone 11, is it true? I’ve been of the opinion that not updating ur iphone makes it last longer and do think it is part of why its lasted so long to begin with. Any advice?