depends on the company and department.
the downsides of SRE is that you tend to be super hyper specialised in something thats only really of any sense to that department inside a company.
Moreover, you're dealing with real steel machines, and amounts of data that are prohibitorily expensive to just start again with. (the joy of AWS is that most of the times you can delete it all and spin it up again, often side by side)
also, some SREs are really specialised software devs, others like me are sysadmins who'd been swept by the current into SRE roles.
My company SREs are not like google's, where they are rock stars swanning about doing one line fixes that make everything .48% more reliable. We are computer nurses making sure that the wards of systems we look after aren't wiped out because a doctor forgot to wash their hands after taking a poo.
However, they both require the same skills: murder mystery and the ability to dive super deep into the stack, go from python->c->assembly. or service->VFS->cache->network->time weirdness
Also it could just be copy pasting service defs and making dashboards, then pinging devs saying "shits on fire yo"