Is the Poco F5 worth it

Hello, I’m looking for an upgrade from my Iphone 8+, and the Poco F5 seems to be like the best option for 400 bucks considering I want to play heavy-ish games.

Besides gaming, other priorities would be battery life and overall performance, and the F5 seems to be great in those aspects as well.

Only problem is I’ve read that the Poco phones have some “dead motherboard” issues and that they don’t work well with their own OS, so I’ll have to install a custom one?

Main question is, are these problems as serious as they sound, and will I really need to install a custom OS and how exactly should I do that?

Thanks in advance.