I would add a note of caution. If she is set on a particular industry she may find that employers in that field are looking for specific things, perhaps a strong aptitude for maths, or having taken relevant courses, things that a more general engineering consultancy might not be as interested in.
DD has an engineering degree. Medical students can be allowed to take a year out and acquire a BSc. Hers is in biomedical engineering from Imperial. She was literally given six weeks before the start of term to catch up on the maths and electronics and then joined third year engineering students.
In her case lockdown may have been an advantage as she found the course fascinating and was stuck in her bedroom with little else to do, so could put in the hours. In fairness she would have saved time because labs were not available and she did not need to commute, indeed the first time she saw the university bar was after her graduation. She has been told that she is able to apply for the main standalone MSc, or could approach research teams directly if she wanted to progress to a PhD.
In that, admittedly isosteric, field there seems to be no mention of chartered or the need for a MSc, and indeed the Imperial starting sending her targeted emails from recruiters, some with very high starting salaries, who seem to value the BSc alone.
In the same way as Cambridge would, Imperial carries real name recognition. Saying she has an engineering degree from Imperial impresses medical colleagues. No one ever asks what class degree she got. She also knows a lot. The poor radiologist who innocently asked a group of final year medical students if they knew how a scanner worked, did not expect that one of the group might give him chapter and verse on the underlying engineering. I assume, given the ability of the cohort and the intensity and quality of the teaching that Cambridge and Imperial cover more ground.
A friend of DDs struggled at University. He was very bright, and though quiet had a group of loyal friends at school. University was a different matter. As an international student he found the English students ignored him whilst several years in English boarding schools meant he was not accepted by his own countrymen. He found himself unhappy and isolated, which impacted his studies and he was not able to continue to the fourth year at his well regarded London University. . However he was accepted by another prestigious RG University for a stand alone Masters, and indeed is now taking a PhD.
I have just looked up the course. Entry requirements are a 2.1 or international equivalent or "evidence of significant, relevant work experience". My guess that the fact he had graduated from "tough" course, as well as his willingness to pay international fees approaching £35,000pa will have helped. Plus that other than degree class he was a straight A student.
Fees are the issue. Fees for Integrated Masters are capped at UG rates, and student loans are available. Switch Universities and you are paying whatever fees they choose to charge, and engineering is an expensive course to run.
One step at a time. She is doing very well overcoming her panic and giving each exam her best shot. She should gain confidence from that. See what happens. One option might be to approach the firms she has interned for and others in fields that interest her to try to take a working gap year. If she remains interested in that path and has a year to rebuild confidence and to gain a bit of perspective, she can then decide on what next. However all credit to her for getting on with the exams.
,