You're duplicting data which is to be discouraged. You should contact ORM to ask why it renders differently. Please don't tag incorrectly to suit the renderer.

BTM is already tagged with railway=station in both a polygon & a relation. You've now added a third as a node.
The polygon's name label is rendered in ORM.

I note ORM appear to render your node's name label twice, in grey & blue. Are you aware of a reason for this?

Hi Welcome.

When adding Wiki tags please follow this advice:
wikipedia=*

Hi
You appear to have deleted part of a MP relation:
relation/544562#map=15/51.3728/-2.9684

way/54442794

Hi
Have these widespread edits been discussed anywhere?

My understanding is natural=sand used to describe a golf bunker is prime example of 'tagging incorrectly for the renderer'

Excellent. Do you live/work there? If so could you check if this (Oakwood?) is in the correct location?
way/438157525
Some plans show it at the bend in Jenner Boulevard

I've joined the two Winterbourne International Academy together otherwise it registers a two schools.

way/303150680

way/512969526/history

The road is at ground level. The motorway is tag as a bridge over. There can't be both a bridge & tunnel.

Isn't the car park used by the pub any more?
way/286499145/history#map=18/51.50887/-2.51299

Hi Welcome to OSM

This is a duplicated area:
way/512969527/history#map=19/51.49421/-2.47358

Please update existing polygon if it's not accurately mapped

Hi again
Has it been relayed as before it was a 2.5m path?:
https://pbs.twimg.com/media/DGdcqAYXsAAL8sK.jpg

Hi
Welcome to OSM.

What's there instead of the scrub? In OSM we try to update & replace rather than delete where possible.

Hi Welcome to OSM

A couple of things with this way:
way/511860873#map=17/51.44605/-2.62161

Is it an official cyclepath? I know it was a temp one during Ashton Bridge renovation. Are there signs?
It requires shared nodes at intersections with other ways such as the steps & Ashmead Way.

Hi
Do you have more details on OMM? A quick search returns mainly business listings. Unsure if 'occupational health' should be classed as a hospital.

Hi
Could you refrain from joining polygons, in this case residential areas, to the centreline of roads. It causes problems when adding entities such a gates to field areas.

You're in the wrong town & there's already a tag for it.

Could you clarify what this is please?

Metrobus confirm this section is to be guided, but unclear of the extent.

Conformation from Metrobus:
"Motorists can no longer enter Avon Crescent from Cumberland Rd. Motorists on the road can exit it from the north by the Nova Scotia."

I'm unsure if OsmAnd has the ability to amend polygons. Hve a lok hear for ones that do: osm.wiki/Editors

Please don't stop adding nodes to OSM, but do a search in OsmAnd to see if the entity already exists.