We live in an area with pretty poor 4G mobile coverage, no 5G and no fibre. Until a month ago we used a GOMO sim, which is on the Eir network. It is €14.99 per month. Was adequate - I worked from home for several years including during Covid. Fine for Zoom/Teams calls, fine for general emails etc. Could just about stream RTE player with some occasional buffering but not worth paying for netflix etc and that was with just an indoor aerial where we got about 2.5mb download and a crawl upload. More recently with an external aerial we got 25mb down and 2.5mb upload. Gomo gives 120GB per month which was fine. Previously they gave 80GB which was a bit tight, after that it is technically unlimited but they crank back your speed to a crawl. Stand outside the new house, or better still in the living room with your mobile phone and do a speed test using an eir or gomo phone to try it out. You can find a speed test by googling them - it is free to do.
A month or so ago we got Starlink - it is now down to around €50 per month, having started at three times that price. Gives 250mb download and 25mb upload - so ten times as fast. The unit is mobile - you can fix it to the roof/outside wall or e.g. put it on the lawn on the stand provided. Obviously much better speed and we are thinking about Netflix (happy days!)