Due to a lack of scientific tools at the premises of the University of Montenegro, partially influenced by the COVID-19 pandemic, that coincided with our activities when we joined CERN RD50 Collaboration at the end of 2019, we set up the various R&D research activities on Low Gain Avalanche Detector (LGAD) at the different EU labs. While overviewing the projects in which we participated (study of the Single Event Burnout and study of the Gain Suppression), we will also review some findings and give new insights. The main result of this work is estimation of deposited energy by passing low-energy proton ions in the gain layer that insignificantly affects the gain in LGAD; we have also estimated the depth inside LGAD corresponding to the absorption length of the ion track after which further increase in absorption length (and deposited energy) will not significantly affect the further reduction of the gain. The corresponding number of MIP particles that would leave the equivalent charge is discussed too. What we have also noticed and what has not been previously published is that the reduction of gain also depends on charge generation and recombination rate. Strikingly, although the carbon ion (C(18 MeV)) deposits 14 times more energy than proton ion (H (0.745 MeV)) when passing the first 3.5 microns of device, their gains differ only by 20%. This can only be explained by faster recombination of electron and holes in the case of carbon ions; in the flat bias response, that is recorded for Carbon ions, the external field is unable to penetrate the dense charge cloud and high-injection level (over less spatial extent than for proton ions) results in shorter high-injection lifetimes due to Auger recombination.