Current tech does not need 5G and the shit that they think will need 6G is just needless XR systems that will be steaming an unjustifiable amount of data from the "cloud".
When I had a Pixel 6, there was a bug that caused awful battery drain when on 5G, so I changed the preferred network setting to LTE for like a month while waiting for them to fix the issue.
It had NO effect on my regular use at all. Running speed tests showed that my max download speed was significantly slower while using LTE, but that's obviously not indicative of real world usage. If there was any difference between LTE and 5G in terms of page loading, media streaming, etc during regular daily activities, it wasn't perceptible.
I honestly don't think I'd notice a real world difference between 4G and H+ in most scenarios except for, maybe, video. I never understood the hype for 5G, especially considering the horrendous frequency limitations that imply line of sight AND very small coverage radii.