Why go to all the trouble or limit your choices in order to avoid PPPoE (which as you are finding is not really that easy or cheap to avoid it in the UK)?
There is absolutely no reason why PPPoE should cause you any issues, unless you are using some very old hardware that gets bogged down by it, and if that is the case, it would be cheaper and easier to upgrade that kit.
In an ideal world we wouldn't have PPPoE, but its transparent to most users. The only thing it might mean is your MTU is 1492, but even then it's pretty easy with most kit to change the MTU to 1508 on the router, adding 8 bytes for the PPPoE, allowing for the maximum MTU of 1500 once PPPoE is stripped of by the ISP. Even then you'd be hard pressed to notice the difference in day to day use.
Edited by E300 (Wed 27-Jul-22 08:33:29)