Rose help needed

[notadr]

Recently purchased a new house, most of the garden is a mess as the previous owner clearly didn't touch it. However it does have some lovely plants as a keen gardener has lived here at some point.
Now over the past week, 6 or so lovely rose plants have flowered. Today I have discovered that my favourite ( which is already around 8ft tall) is still in it's original pot as I discovered when I tried to take the pot for something else. Can it live in the pot forever or do I need to try and repot/get it in the ground?
Second, I just discovered a DA rose. It's only tiny but should I be repotting it?
Finally, is the white rose the sort that can be guided to grow along a wall (currently many flowers are sticking out over the path) and does it have fungus on the leaves?

Picture of the pot the pink climbing rose is currently cohabiting with a fern(?).

That look like a cypress type tree sapling. Has the rose rooted through the pot into the ground?

@WeAreTheHeroes yes the rose has gone through the pot, unless it's one of the other plants in there holding it down.
Just googled cypress tree, looks like that will need moving otherwise it's 3 large plants competing.

The peach rose looks like Lady of Shallot. I had a rose that grew through the bottom of a pot, in my last house, it was perfectly happy.

The white rose looks very like our Mme Alfred Carrière. If it is, it gets very big (I bought ours by mistake before reading its growing habit! We are having to keep it in check as it's only on a 10 foot high trellis, although the trellis is very wide so we are training it to go across as well as up). Is it strongly scented?

Ours has the nicest scent of all our roses, a lovely real old fashioned rose smell 😍

If the first rose has got to 8ft and rooted through the pot, I'd be inclined to let it be, but get rid of its cohabitees. The tree sapling is probably an accident, not something you'll want in the garden anyway.

The white rose looks like it can be trained against the wall. Get a trellis or wires behind it, you want to tie in stems arcing across to cover the wall, and you'll get more flowers.

I wouldn't do anything much to the rose until this winter, other than removing as much of the surrounding junk that will be cramping it, it looks like there Virginia creeper etc, cut it out, cut out any dead or weak branches, & treat for Iodium (fungus)
I agree the rose has probably grown through the pot. If you really want to move it, you can prune right back & dig out the root & replant this winter,

There's no need to treat your rose for fungus, or anything for that matter, it affects the wild life badly (not to mention your children). After spraying with a nettle feed and a giving a mulch our roses are flowering beautifully with yellowing, slightly spotty leaves, why should it be problem? The birds enjoy the aphids.

You can possibly cut away the pot from around the roots and dig around to actually bury it , I would wait until Autumn and did it all up, then replant deeply.

There are various "natural" treatments for bugs & other ailments.
I have never seen birds eat the greenfly, they eat the bugs that eat the greenfly ! (but ladybirds do, you can buy ladybird lava !)