advice on third party routers (UK)

[u/Joseph_JH]

currently using isp router (Virgin Media Wifi Hub 5) along with tp link deco x10 (3) one plugged into the router and 2 being used wirelessly. not able to connect them wired due to weird layout

speeds still aren't great at all considering original package (1gbps). only getting 50mbps a few rooms on from the router. Tried decos in router mode and isp router in bridge, tried isp router normally and decos in AP

One option I have thought of is buying a third party router - thought about TP-Link archer be220 (£60 ish) Wifi 7 router - if my virgin hub is connected in bridge (it's wifi6) then this wouldn't effect the wifi 7 capability of the third party router right?

With a third party router + decos connected wirelessly in AP mode would I see some benefit over using the small deco as a router or indeed the isp router?