I think it’s a great time to switch things over.
All major browsers and web engines support it and anything that doesn’t anymore is painfully outdated. This would offer you improved quality to storage ratios. Additionally, it would support 10bit colour which can be important with anime art.
No. It was my “old” phone back then already. It’s around because it still works, in case I need it for something.
I use an Xperia 1 V as my current.