Minecraft Java 1.16.1 i see too many good speedruners set their fov to 30 and entity distance to 50% while they find the stronghold look around and then isntanly go to the portal room i know how to find a bastion like that but can someone explain me how i can find the portal room too cuz i usually spent way to much time on that

Ask in the Minecraft forum or discord. Or check the guides.

Use the pie chart to look for spawners, and go in the direction where it spikes.