In theory, BT5.0 improvement over BT4.2 is mainly in range and bandwidth, so you can be farther away (beyond 30-35ft limitation of BT4.2) transmitting larger packets of data, but closer to the source it shouldn't make as much difference between these two standards, especially when it comes to audio quality. Again, all this theoretically speaking. I think bigger variation is what headphones, earphones, or TWS you are using. I received quite a few messages from people complaining about TWS and various DAP connections. Just seems that TWS are optimized better for use with smartphones, and in general you don't need DAPs for that since DAC/amp section won't be utilized.
But with WiFi, I have a feeling some people would have benefited from dual 2.4/5GHz while SR25 supports only 2.4GHz according to the spec. Makes me wonder if every bit and piece of that design (including only 2.4GHz and BT4.2) was carefully selected and optimized to squeeze out ever extra minute of battery life
So, that's part of a trade off of being able to use it for 22hrs on a single charge.