Triban RC 100 upgrade I hope you're all safe.
I'm looking to upgrade my Triban rc 100.
It includes Shimano Touney groupset and Microshift x7 cassette.
Currently, the groupset that attracts me the most is the Shimano Tiagra 4700 2 or 3x10 and a compatible back wheel.
However, I'm want to ensure that I can mount this groupset on my bike.
Therefore, I would like to know if this groupset would be compatible with my bike frame.
Could someone please help in discovering this, as well as other considerations I have to take into account before upgrading?

Thank you in advance for your time.
It should be quite possible. Even the rear wheel hub might work as is if it really is a cassette (most likely CS-H072 12-28) and not a freewheel. You will also need a new bottom bracket with the new chainset. You may decide whether to keep the brakes or not, it is possible.

Overall it will not be cheap and you will have a cheap frame with a good groupset and potentially cheap wheels. It is up to each individual to decide whther it is worth the investment. Cheaper groupsets, like Sora and Claris are also decent, but have less speeds. Again, up to everyone's individual decision. The no-longer needed components can be sold, but will not be worth that much.

I would suggest to think twice about the 3x cranks. They are not very popular today, because modern modern gearings allow wide range of gears with 2x cranks. The difference between those two chainrings is now most often 16 and that is more than it traditionally used to be. With 10x speeds in the rear the spacing still should be good enough even though modern rear derailleurs allow cassettes with a wider gear range.