Pulmonary Sarcoidosis: How are you dealing with it?

I’m new to this group. I live in Victoria, BC, Canada. I have known about the granulomas in my right upper lung for several years but had no serious symptoms, so rather forgot about it. Two years ago I began to have regular fainting spells which resulted in explorations of my heart. X-rays showed the granulomas had grown and lung biopsy confirmed Sarcoidosis. Heart diagnosis was AVBlock - 3rd degree (meaning the heart would stop for several seconds). This led to a pacemaker install which corrected the problem. Heart specialist believes that the Sarcoidosis caused the electrical problem in the heart as my heart is very strong and healthy. I was on prednisone for a year. What a drug! Took away all of my body pains. After a year I slowly tapered off of the prednisone and have been on Methotrexate. THAT was a tough change, but I have come through it and have some of the joint pain back - but it is manageable. Heart is just fine.
My question to others is this: What follow up should I expect from the Respirologist? How often should they check the lung granulomas and also investigate if they have spread? And if they are stable or shrunk - does one go off of the Methotrexate? The Methotrexate causes one to be immune compromised and I have picked up Covid twice - despite begin a super careful person - and also a flu twice. With long recoveries. If I don’t need the Methotrexate any longer - perhaps my immune system would improve. Or is this a medication taken forever to keep the granulomas at bay?

I have another important question about Pulmonary Sarcoidosis and whether there is any connection between it and exposure to a natural gas fireplace or cooktop and oven. Does this exposure irritate the lungs?

I am also interested in dealing with pulmonary Sarcoidosis. I am only on an inhaler and my cat scans show no improvement, only slightly worse.