My s10+ got green line issue after 1.5 to 2 yrs after an update. and finally whole screen green out. Thereafter all the green line saga comes out.
Went to change and paid 200+, use until now 2 yrs plus still going strong. But no more security updates already...
Same like you worry about the green line thing in S series. That's why get A series. If lucky still can use till 2027/8. I was also looking at poco phone.. after much consideration, got a54. Got hybrid sim and sd card slot, esim, nfc, good enough for the price $336.
Just to add, i like Samsung browser and secured folder function. Samsung browser got "official" ad block extension and it works well. I installed similar app on Ipad safari and don't work even i enabled the extension.